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  Species: Mystus seengtee
  Caption: Vaigai River
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  Species: Rineloricaria aequalicuspis
  Caption: Variation in abdominal plates. Fish > 10cm TL
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  Species: Pareiorhaphis hystrix
  Caption: Variation in adult male pectoral-fin spines
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  Species: Pareiorhaphis hystrix
  Caption: Variation in development of male traits
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  Species: Hemibagrus nemurus
  Caption: Vat of farm raised albino specimens
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  Species: Ancistrus cf. cirrhosus
  Caption: Veiltail
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  Species: Ancistrus cf. cirrhosus
  Caption: Veiltail
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  Species: Ancistrus cf. cirrhosus
  Caption: Veiltail
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  Species: Ancistrus cf. cirrhosus
  Caption: Veiltail
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  Species: Microglanis iheringi
  Caption: VEN10-55, Rio Orinoco at Merey, ~100km N of San Fernando de Atabapo
• 
  Species: Pterygoplichthys sp. (1)
  Caption: Venezuelan
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  Species: Phractura fasciata
  Caption: Ventral
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  Species: Otocinclus flexilis
  Caption: Ventral / head-on view
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  Species: Pterobunocephalus dolichurus
  Caption: ventral shot
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  Species: Centromochlus orca
  Caption: ventral shot
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  Species: Ossancora punctata
  Caption: ventral shot
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  Species: Ailiichthys punctata
  Caption: Ventral view
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  Species: Proeutropiichthys taakree
  Caption: Ventral view
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  Species: Acrochordonichthys guttatus
  Caption: Ventral view
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  Species: Akysis bilustris
  Caption: Ventral view
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  Species: Akysis pulvinatus
  Caption: Ventral view
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  Species: Akysis vespa
  Caption: Ventral view
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  Species: Breitensteinia insignis
  Caption: Ventral view
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  Species: Breitensteinia insignis
  Caption: Ventral view
• 
  Species: Pseudobagarius inermis
  Caption: Ventral view
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  Species: Pseudobagarius meridionalis
  Caption: Ventral view
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  Species: Pseudobagarius similis
  Caption: Ventral view
• 
  Species: Amblyceps arunachalense
  Caption: Ventral view
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  Species: Amblyceps protentum
  Caption: Ventral view
• 
  Species: Liobagrus anguillicauda
  Caption: Ventral view
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  Species: Xiurenbagrus gigas
  Caption: Ventral view
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  Species: Amphilius grandis
  Caption: Ventral view
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  Species: Amphilius jacksonii
  Caption: Ventral view
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  Species: Amphilius krefftii
  Caption: Ventral view
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  Species: Amphilius longirostris
  Caption: Ventral view
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  Species: Amphilius maesii
  Caption: Ventral view
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  Species: Amphilius natalensis
  Caption: Ventral view
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  Species: Amphilius opisthophthalmus
  Caption: Ventral view
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  Species: Belonoglanis brieni
  Caption: Ventral view
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  Species: Dolichamphilius brieni
  Caption: Ventral view
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  Species: Phractura scaphyrhynchura
  Caption: Ventral view
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  Species: Tetracamphilius angustifrons
  Caption: Ventral view
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  Species: Trachyglanis ineac
  Caption: Ventral view
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  Species: Trachyglanis ineac
  Caption: Ventral view
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  Species: Trachyglanis sanghensis
  Caption: Ventral view
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  Species: Zaireichthys mandevillei
  Caption: Ventral view
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  Species: Zaireichthys rotundiceps
  Caption: Ventral view
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  Species: Gogo atratus
  Caption: Ventral view
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  Species: Gogo brevibarbis
  Caption: Ventral view
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  Species: Ariopsis assimilis
  Caption: Ventral view
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  Species: Arius acutirostris
  Caption: Ventral view
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  Species: Hexanematichthys mastersi
  Caption: Ventral view
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  Species: Neoarius graeffei
  Caption: Ventral view
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  Species: Netuma bilineata
  Caption: Ventral view
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  Species: Osteogeneiosus militaris
  Caption: Ventral view
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  Species: Sciades herzbergii
  Caption: Ventral view
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  Species: Bunocephalus colombianus
  Caption: Ventral view
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  Species: Bunocephalus hertzi
  Caption: Ventral view
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  Species: Bunocephalus knerii
  Caption: Ventral view
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  Species: Bunocephalus larai
  Caption: Ventral view
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  Species: Ernstichthys megistus
  Caption: Ventral view
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  Species: Pterobunocephalus depressus
  Caption: Ventral view
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  Species: Pterobunocephalus depressus
  Caption: Ventral view
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  Species: Xyliphius lepturus
  Caption: Ventral view
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  Species: Xyliphius melanopterus
  Caption: Ventral view
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  Species: Astroblepus boulengeri
  Caption: Ventral view
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  Species: Astroblepus brachycephalus
  Caption: Ventral view
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  Species: Astroblepus chotae
  Caption: Ventral view
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  Species: Astroblepus cirratus
  Caption: Ventral view
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  Species: Astroblepus eigenmanni
  Caption: Ventral view
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  Species: Astroblepus festae
  Caption: Ventral view
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  Species: Astroblepus fissidens
  Caption: Ventral view
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  Species: Astroblepus guentheri
  Caption: Ventral view
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  Species: Astroblepus heterodon
  Caption: Ventral view
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  Species: Astroblepus homodon
  Caption: Ventral view
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  Species: Astroblepus mancoi
  Caption: Ventral view
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  Species: Astroblepus marmoratus
  Caption: Ventral view
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  Species: Astroblepus orientalis
  Caption: Ventral view
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  Species: Astroblepus retropinnus
  Caption: Ventral view
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  Species: Astroblepus simonsii
  Caption: Ventral view
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  Species: Astroblepus taczanowskii
  Caption: Ventral view
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  Species: Astroblepus vaillanti
  Caption: Ventral view
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  Species: Astroblepus whymperi
  Caption: Ventral view
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  Species: Ageneiosus apiaka
  Caption: Ventral view
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  Species: Entomocorus radiosus
  Caption: Ventral view
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  Species: Tatia concolor
  Caption: Ventral view
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  Species: Tetranematichthys barthemi
  Caption: Ventral view
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  Species: Trachelyichthys decaradiatus
  Caption: Ventral view
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  Species: Trachelyopterus sp. (4)
  Caption: Ventral view
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  Species: Bagrichthys macracanthus
  Caption: Ventral view
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  Species: Mystus velifer
  Caption: Ventral view
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  Species: Nanobagrus fuscus
  Caption: Ventral view
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  Species: Nanobagrus lemniscatus
  Caption: Ventral view
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  Species: Pseudomystus stenogrammus
  Caption: Ventral view
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  Species: Tachysurus brevianalis
  Caption: Ventral view
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  Species: Tachysurus eupogon
  Caption: Ventral view
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  Species: Tachysurus nubilosus
  Caption: Ventral view
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  Species: Tachysurus spilotus
  Caption: Ventral view
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  Species: Tachysurus tokiensis
  Caption: Ventral view
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  Species: Corydoras(ln1) spilurus
  Caption: Ventral view
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  Species: Corydoras(ln1) zawadzkii
  Caption: Ventral view
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  Species: Corydoras(ln6) lacrimostigmata
  Caption: Ventral view
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  Species: Corydoras(ln6) lymnades
  Caption: Ventral view
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  Species: Corydoras(ln9) esperanzae
  Caption: Ventral view
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  Species: Corydoras(ln9) trilineatus
  Caption: Ventral view
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  Species: Scleromystax salmacis
  Caption: Ventral view
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  Species: Cetopsis baudoensis
  Caption: Ventral view
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  Species: Chaca serica
  Caption: Ventral view
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  Species: Clariallabes longicauda
  Caption: Ventral view
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  Species: Clarias dhonti
  Caption: Ventral view
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  Species: Clarias engelseni
  Caption: Ventral view
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  Species: Clarias gracilentus
  Caption: Ventral view
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  Species: Clarias teijsmanni
  Caption: Ventral view
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  Species: Tanganikallabes alboperca
  Caption: Ventral view
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  Species: Tanganikallabes mortiauxi
  Caption: Ventral view
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  Species: Tanganikallabes stewarti
  Caption: Ventral view
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  Species: Uegitglanis zammaranoi
  Caption: Ventral view
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  Species: Xenoclarias holobranchus
  Caption: Ventral view
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  Species: Chrysichthys acsiorum
  Caption: Ventral view
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  Species: Chrysichthys turkana
  Caption: Ventral view
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  Species: Notoglanidium maculatum
  Caption: Ventral view
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  Species: Parauchenoglanis punctatus
  Caption: Ventral view
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  Species: Acanthodoras cataphractus
  Caption: Ventral view
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  Species: Acanthodoras spinosissimus
  Caption: Ventral view
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  Species: Agamyxis pectinifrons
  Caption: Ventral view
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  Species: Amblydoras nauticus
  Caption: Ventral view
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  Species: Doras phlyzakion
  Caption: Ventral view
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  Species: Leptodoras nelsoni
  Caption: Ventral view
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  Species: Leptodoras rogersae
  Caption: Ventral view
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  Species: Orinocodoras eigenmanni
  Caption: Ventral view
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  Species: Platydoras brachylecis
  Caption: Ventral view
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  Species: Rhynchodoras xingui
  Caption: Ventral view
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  Species: Cetopsorhamdia molinae
  Caption: Ventral view
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  Species: Imparfinis stictonotus
  Caption: Ventral view
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  Species: Phenacorhamdia boliviana
  Caption: Ventral view
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  Species: Pimelodella vittata
  Caption: Ventral view
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  Species: Rhamdia laticauda
  Caption: Ventral view
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  Species: Pseudeutropius mitchelli
  Caption: Ventral view
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  Species: Ictalurus pricei
  Caption: Ventral view
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  Species: Prietella phreatophila
  Caption: Ventral view
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  Species: Lacantunia enigmatica
  Caption: Ventral view
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  Species: Acestridium gymnogaster
  Caption: Ventral view
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  Species: Acestridium martini
  Caption: Ventral view
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  Species: Acestridium triplax
  Caption: Ventral view
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  Species: Ancistomus sp. (L487)
  Caption: Ventral view
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  Species: Ancistrus aff. bolivianus
  Caption: Ventral view
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  Species: Ancistrus alga
  Caption: Ventral view
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  Species: Ancistrus brevipinnis
  Caption: Ventral view
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  Species: Ancistrus caucanus
  Caption: Ventral view
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  Species: Ancistrus centrolepis
  Caption: Ventral view
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  Species: Ancistrus cf. cirrhosus
  Caption: Ventral view
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  Species: Ancistrus claro
  Caption: Ventral view
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  Species: Ancistrus clementinae
  Caption: Ventral view
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  Species: Ancistrus falconensis
  Caption: Ventral view
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  Species: Ancistrus heterorhynchus
  Caption: Ventral view
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  Species: Ancistrus karajas
  Caption: Ventral view
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  Species: Ancistrus krenakarore
  Caption: Ventral view
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  Species: Ancistrus leucostictus
  Caption: Ventral view
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  Species: Ancistrus lineolatus
  Caption: Ventral view
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  Species: Ancistrus lithurgicus
  Caption: Ventral view
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  Species: Ancistrus malacops
  Caption: Ventral view
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  Species: Ancistrus marcapatae
  Caption: Ventral view
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  Species: Ancistrus miracollis
  Caption: Ventral view
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  Species: Ancistrus montanus
  Caption: Ventral view
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  Species: Ancistrus occidentalis
  Caption: Ventral view
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  Species: Ancistrus ranunculus
  Caption: Ventral view
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  Species: Ancistrus shuar
  Caption: Ventral view
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  Species: Ancistrus sp. `LOWER RIO NEGRO`
  Caption: Ventral view
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  Species: Ancistrus sp. `RIO MAMORE`
  Caption: Ventral view
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  Species: Ancistrus sp. `RIO UCAYALI`
  Caption: Ventral view
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  Species: Ancistrus sp. (L159)
  Caption: Ventral view
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  Species: Ancistrus sp. (L325)
  Caption: Ventral view
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  Species: Ancistrus sp. (L509)
  Caption: Ventral view
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  Species: Ancistrus tolima
  Caption: Ventral view
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  Species: Ancistrus trinitatis
  Caption: Ventral view
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  Species: Andeancistrus eschwartzae
  Caption: Ventral view
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  Species: Andeancistrus platycephalus
  Caption: Ventral view
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  Species: Avalithoxus jantjae
  Caption: Ventral view
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  Species: Baryancistrus cf. niveatus
  Caption: Ventral view
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  Species: Baryancistrus demantoides
  Caption: Ventral view
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  Species: Baryancistrus sp. (L142)
  Caption: Ventral view
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  Species: Chaetostoma anale
  Caption: Ventral view
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  Species: Chaetostoma breve
  Caption: Ventral view
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  Species: Chaetostoma dorsale
  Caption: Ventral view
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  Species: Chaetostoma milesi
  Caption: Ventral view
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  Species: Chaetostoma platyrhynchus
  Caption: Ventral view
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  Species: Chaetostoma platyrhynchus
  Caption: Ventral view
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  Species: Chaetostoma sp. (5)
  Caption: Ventral view
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  Species: Chaetostoma sp. (6)
  Caption: Ventral view
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  Species: Chaetostoma sp. (L455)
  Caption: Ventral view
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  Species: Chaetostoma sp. (L455)
  Caption: Ventral view
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  Species: Chaetostoma sp. (L455)
  Caption: Ventral view
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  Species: Chaetostoma vagum
  Caption: Ventral view
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  Species: Chauliocheilos saxatilis
  Caption: Ventral view
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  Species: Cordylancistrus torbesensis
  Caption: Ventral view
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  Species: Corumbataia tocantinensis
  Caption: Ventral view
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  Species: Corymbophanes ameliae
  Caption: Ventral view
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  Species: Crossoloricaria sp. `PERU`
  Caption: Ventral view
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  Species: Curculionichthys itaim
  Caption: Ventral view
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  Species: Curculionichthys jumaorum
  Caption: Ventral view
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  Species: Curculionichthys tukana
  Caption: Ventral view
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  Species: Dasyloricaria filamentosa
  Caption: Ventral view
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  Species: Delturus sp. (1)
  Caption: Ventral view
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  Species: Epactionotus gracilis
  Caption: Ventral view
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  Species: Epactionotus itaimbezinho
  Caption: Ventral view
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  Species: Farlowella azpelicuetae
  Caption: Ventral view
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  Species: Farlowella mariaelenae
  Caption: Ventral view
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  Species: Farlowella mariaelenae
  Caption: Ventral view
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  Species: Farlowella mitoupibo
  Caption: Ventral view
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  Species: Farlowella nattereri
  Caption: Ventral view
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  Species: Farlowella oxyrryncha
  Caption: Ventral view
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  Species: Farlowella oxyrryncha
  Caption: Ventral view
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  Species: Farlowella smithi
  Caption: Ventral view
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  Species: Farlowella vittata
  Caption: Ventral view
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  Species: Guyanancistrus sp. (L490)
  Caption: Ventral view
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  Species: Harttia dissidens
  Caption: Ventral view
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  Species: Harttia fowleri
  Caption: Ventral view
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  Species: Harttia loricariformis
  Caption: Ventral view
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  Species: Harttia punctata
  Caption: Ventral view
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  Species: Hemiancistrus cerrado
  Caption: Ventral view
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  Species: Hemiancistrus landoni
  Caption: Ventral view
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  Species: Hemiancistrus sp. (L476)
  Caption: Ventral view
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  Species: Hemiancistrus subviridis
  Caption: Ventral view
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  Species: Hirtella carinata
  Caption: Ventral view
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  Species: Hisonotus chromodontus
  Caption: Ventral view
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  Species: Hisonotus chromodontus
  Caption: Ventral view
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  Species: Hisonotus francirochai
  Caption: Ventral view
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  Species: Hisonotus pantherinus
  Caption: Ventral view
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  Species: Hisonotus vespuccii
  Caption: Ventral view
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  Species: Hypancistrus contradens
  Caption: Ventral view
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  Species: Hypancistrus sp. `LOWER RIO XINGU`
  Caption: Ventral view
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  Species: Hypancistrus sp. `LOWER RIO XINGU`
  Caption: Ventral view
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  Species: Hypancistrus sp. (L066)
  Caption: Ventral view
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  Species: Hypancistrus sp. (L136C)
  Caption: Ventral view
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  Species: Hypancistrus sp. (L174)
  Caption: Ventral view
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  Species: Hypancistrus sp. (L260)
  Caption: Ventral view
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  Species: Hypancistrus sp. (L297)
  Caption: Ventral view
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  Species: Hypancistrus sp. (L333)
  Caption: Ventral view
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  Species: Hypancistrus vandragti
  Caption: Ventral view
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  Species: Hypancistrus zebra
  Caption: Ventral view
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  Species: Hypancistrus zebra
  Caption: Ventral view
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  Species: Hypoptopoma cf. guianense
  Caption: Ventral view
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  Species: Hypoptopoma guianense
  Caption: Ventral view
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  Species: Hypoptopoma gulare
  Caption: Ventral view
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  Species: Hypoptopoma gulare
  Caption: Ventral view
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  Species: Hypoptopoma inexspectatum
  Caption: Ventral view
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  Species: Hypoptopoma sp. (4)
  Caption: Ventral view
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  Species: Hypoptopoma steindachneri
  Caption: Ventral view
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  Species: Hypostomus annectens
  Caption: Ventral view
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  Species: Hypostomus argus
  Caption: Ventral view
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  Species: Hypostomus basilisko
  Caption: Ventral view
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  Species: Hypostomus faveolus
  Caption: Ventral view
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  Species: Hypostomus hemiurus
  Caption: Ventral view
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  Species: Hypostomus hemiurus
  Caption: Ventral view
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  Species: Hypostomus jaguar
  Caption: Ventral view
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  Species: Hypostomus jaguribensis
  Caption: Ventral view
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  Species: Hypostomus khimaera
  Caption: Ventral view
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  Species: Hypostomus kuarup
  Caption: Ventral view
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  Species: Hypostomus latifrons
  Caption: Ventral view
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  Species: Hypostomus luteus
  Caption: Ventral view
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  Species: Hypostomus luteus
  Caption: Ventral view
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  Species: Hypostomus macushi
  Caption: Ventral view
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  Species: Hypostomus melanephelis
  Caption: Ventral view
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  Species: Hypostomus niceforoi
  Caption: Ventral view
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  Species: Hypostomus oculeus
  Caption: Ventral view
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  Species: Hypostomus pagei
  Caption: Ventral view
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  Species: Hypostomus roseopunctatus
  Caption: Ventral view
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  Species: Hypostomus sp. `RIO PAUSHIYACO`
  Caption: Ventral view
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  Species: Hypostomus sp. (L346)
  Caption: Ventral view
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  Species: Hypostomus sp. (L517)
  Caption: Ventral view
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  Species: Isorineloricaria acuarius
  Caption: Ventral view
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  Species: Kronichthys lacerta
  Caption: Ventral view
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  Species: Lamontichthys sp. `COLOMBIA`
  Caption: Ventral view
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  Species: Lasiancistrus cf. caucanus
  Caption: Ventral view
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  Species: Leporacanthicus heterodon
  Caption: Ventral view
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  Species: Leporacanthicus joselimai
  Caption: Ventral view
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  Species: Leporacanthicus sp. (L473)
  Caption: Ventral view
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  Species: Leptoancistrus sp. `ATRATO`
  Caption: Ventral view
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  Species: Leptotocinclus ctenistus
  Caption: Ventral view
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  Species: Leptotocinclus madeirae
  Caption: Ventral view
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  Species: Limatulichthys griseus
  Caption: Ventral view
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  Species: Limatulichthys nasarcus
  Caption: Ventral view
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  Species: Lithogenes wahari
  Caption: Ventral view
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  Species: Lithoxancistrus orinoco
  Caption: Ventral view
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  Species: Lithoxancistrus yekuana
  Caption: Ventral view
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  Species: Loricaria birindellii
  Caption: Ventral view
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  Species: Loricaria luciae
  Caption: Ventral view
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  Species: Loricaria luciae
  Caption: Ventral view
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  Species: Loricaria lundbergi
  Caption: Ventral view
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  Species: Loricaria lundbergi
  Caption: Ventral view
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  Species: Loricaria pumila
  Caption: Ventral view
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  Species: Loricaria spinulifera
  Caption: Ventral view
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  Species: Loricariichthys anus
  Caption: Ventral view
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  Species: Loricariichthys hauxwelli
  Caption: Ventral view
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  Species: Loricariichthys hauxwelli
  Caption: Ventral view
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  Species: Nannoptopoma sternoptychum
  Caption: Ventral view
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  Species: Nannoxyropsis acicula
  Caption: Ventral view
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  Species: Nannoxyropsis ephippia
  Caption: Ventral view
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  Species: Neblinichthys echinasus
  Caption: Ventral view
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  Species: Otocinclus batmani
  Caption: Ventral view
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  Species: Otocinclus flexilis
  Caption: Ventral view
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  Species: Otocinclus huaorani
  Caption: Ventral view
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  Species: Otocinclus vittatus
  Caption: Ventral view
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  Species: Otothyris lophophanes
  Caption: Ventral view
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  Species: Panaqolus gnomus
  Caption: Ventral view
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  Species: Panaqolus gnomus
  Caption: Ventral view
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  Species: Panaqolus maccus
  Caption: Ventral view
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  Species: Panaqolus nix
  Caption: Ventral view
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  Species: Panaqolus sp. (1)
  Caption: Ventral view
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  Species: Panaqolus sp. (L002)
  Caption: Ventral view
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  Species: Panaqolus sp. (L169)
  Caption: Ventral view
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  Species: Panaqolus sp. (L397)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L397)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L403)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L458)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L460)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L465)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L466)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L468)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L469)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L469)
  Caption: Ventral view
• 
  Species: Panaqolus sp. (L482)
  Caption: Ventral view
• 
  Species: Panaque bathyphilus
  Caption: Ventral view
• 
  Species: Panaque cf. cochliodon`upper magdalena`
  Caption: Ventral view
• 
  Species: Panaque cf. cochliodon`upper magdalena`
  Caption: Ventral view
• 
  Species: Panaque nigrolineatus laurafabianae
  Caption: Ventral view
• 
  Species: Panaque schaeferi
  Caption: Ventral view
• 
  Species: Paralithoxus bovallii
  Caption: Ventral view
• 
  Species: Paralithoxus planquettei
  Caption: Ventral view
• 
  Species: Parancistrus aurantiacus
  Caption: Ventral view
• 
  Species: Pareiorhaphis bahiana
  Caption: Ventral view
• 
  Species: Pareiorhaphis cameroni
  Caption: Ventral view
• 
  Species: Pareiorhaphis hystrix
  Caption: Ventral view
• 
  Species: Pareiorhaphis scutula
  Caption: Ventral view
• 
  Species: Parotocinclus adamanteus
  Caption: Ventral view
• 
  Species: Parotocinclus bahiensis
  Caption: Ventral view
• 
  Species: Parotocinclus britskii
  Caption: Ventral view
• 
  Species: Parotocinclus britskii
  Caption: Ventral view
• 
  Species: Parotocinclus doceanus
  Caption: Ventral view
• 
  Species: Parotocinclus jacumirim
  Caption: Ventral view
• 
  Species: Parotocinclus jimi
  Caption: Ventral view
• 
  Species: Parotocinclus maculicauda
  Caption: Ventral view
• 
  Species: Parotocinclus maculicauda
  Caption: Ventral view
• 
  Species: Parotocinclus spilosoma
  Caption: Ventral view
• 
  Species: Paulasquama callis
  Caption: Ventral view
• 
  Species: Peckoltia brevis
  Caption: Ventral view
• 
  Species: Peckoltia compta
  Caption: Ventral view
• 
  Species: Peckoltia ephippiata
  Caption: Ventral view
• 
  Species: Peckoltia furcata
  Caption: Ventral view
• 
  Species: Peckoltia greedoi
  Caption: Ventral view
• 
  Species: Peckoltia lujani
  Caption: Ventral view
• 
  Species: Peckoltia pankimpuju
  Caption: Ventral view
• 
  Species: Peckoltia pankimpuju
  Caption: Ventral view
• 
  Species: Peckoltia relictum
  Caption: Ventral view
• 
  Species: Peckoltia sp. `RIO NEGRO`
  Caption: Ventral view
• 
  Species: Peckoltia sp. (L205)
  Caption: Ventral view
• 
  Species: Peckoltia sp. (L288)
  Caption: Ventral view
• 
  Species: Peckoltia vittata
  Caption: Ventral view
• 
  Species: Peckoltia wernekei
  Caption: Ventral view
• 
  Species: Planiloricaria cryptodon
  Caption: Ventral view
• 
  Species: Planiloricaria cryptodon
  Caption: Ventral view
• 
  Species: Pseudacanthicus cf. spinosus
  Caption: Ventral view
• 
  Species: Pseudacanthicus fordii
  Caption: Ventral view
• 
  Species: Pseudacanthicus leopardus
  Caption: Ventral view
• 
  Species: Pseudancistrus guentheri
  Caption: Ventral view
• 
  Species: Pseudancistrus kayabi
  Caption: Ventral view
• 
  Species: Pseudancistrus kwinti
  Caption: Ventral view
• 
  Species: Pseudancistrus sp. (L491)
  Caption: Ventral view
• 
  Species: Pseudohemiodon sp. `AMAZONAS VENEZUELA`
  Caption: Ventral view
• 
  Species: Pseudohemiodon sp. `MARBLED`
  Caption: Ventral view
• 
  Species: Pseudohemiodon sp. `PARAGUAY`
  Caption: Ventral view
• 
  Species: Pseudolithoxus dumus
  Caption: Ventral view
• 
  Species: Pseudolithoxus kelsorum
  Caption: Ventral view
• 
  Species: Pseudolithoxus nicoi
  Caption: Ventral view
• 
  Species: Pterygoplichthys joselimaianus
  Caption: Ventral view
• 
  Species: Pterygoplichthys joselimaianus
  Caption: Ventral view
• 
  Species: Pterygoplichthys lituratus
  Caption: Ventral view
• 
  Species: Pterygoplichthys parnaibae
  Caption: Ventral view
• 
  Species: Pterygoplichthys scrophus
  Caption: Ventral view
• 
  Species: Pterygoplichthys sp. (L472)
  Caption: Ventral view
• 
  Species: Pterygoplichthys weberi
  Caption: Ventral view
• 
  Species: Pterygoplichthys weberi
  Caption: Ventral view
• 
  Species: Pyxiloricaria menezesi
  Caption: Ventral view
• 
  Species: Rhadinoloricaria ommation
  Caption: Ventral view
• 
  Species: Rhinelepis strigosa
  Caption: Ventral view
• 
  Species: Rhinolekos britskii
  Caption: Ventral view
• 
  Species: Rhinolekos capetinga
  Caption: Ventral view
• 
  Species: Rhinolekos garavelloi
  Caption: Ventral view
• 
  Species: Rhinolekos schaeferi
  Caption: Ventral view
• 
  Species: Rineloricaria aequalicuspis
  Caption: Ventral view
• 
  Species: Rineloricaria baliola
  Caption: Ventral view
• 
  Species: Rineloricaria cacerensis
  Caption: Ventral view
• 
  Species: Rineloricaria cadeae
  Caption: Ventral view
• 
  Species: Rineloricaria eigenmanni
  Caption: Ventral view
• 
  Species: Rineloricaria felipponei
  Caption: Ventral view
• 
  Species: Rineloricaria formosa
  Caption: Ventral view
• 
  Species: Rineloricaria heteroptera
  Caption: Ventral view
• 
  Species: Rineloricaria jurupari
  Caption: Ventral view
• 
  Species: Rineloricaria longicauda
  Caption: Ventral view
• 
  Species: Rineloricaria malabarbai
  Caption: Ventral view
• 
  Species: Rineloricaria misionera
  Caption: Ventral view
• 
  Species: Rineloricaria pareiacantha
  Caption: Ventral view
• 
  Species: Rineloricaria sp. (7)
  Caption: Ventral view
• 
  Species: Rineloricaria steinbachi
  Caption: Ventral view
• 
  Species: Rineloricaria strigilata
  Caption: Ventral view
• 
  Species: Rineloricaria thrissoceps
  Caption: Ventral view
• 
  Species: Scobinancistrus cf. pariolispos
  Caption: Ventral view
• 
  Species: Scobinancistrus sp. (L082)
  Caption: Ventral view
• 
  Species: Soromonichthys stearleyi
  Caption: Ventral view
• 
  Species: Spatuloricaria caquetae
  Caption: Ventral view
• 
  Species: Sturisoma robustum
  Caption: Ventral view
• 
  Species: Sturisomatichthys aureus
  Caption: Ventral view
• 
  Species: Sturisomatichthys caquetae
  Caption: Ventral view
• 
  Species: Sturisomatichthys citurensis
  Caption: Ventral view
• 
  Species: Sturisomatichthys festivus
  Caption: Ventral view
• 
  Species: Sturisomatichthys kneri
  Caption: Ventral view
• 
  Species: Sturisomatichthys tamanae
  Caption: Ventral view
• 
  Species: Transancistrus santarosensis
  Caption: Ventral view
• 
  Species: Yaluwak primus
  Caption: Ventral view
• 
  Species: Atopochilus sp. (1)
  Caption: Ventral view
• 
  Species: Atopodontus adriaensi
  Caption: Ventral view
• 
  Species: Atopodontus adriaensi
  Caption: Ventral view
• 
  Species: Chiloglanis anoterus
  Caption: Ventral view
• 
  Species: Chiloglanis camarabounyi
  Caption: Ventral view
• 
  Species: Chiloglanis dialloi
  Caption: Ventral view
• 
  Species: Chiloglanis kabaensis
  Caption: Ventral view
• 
  Species: Chiloglanis kolente
  Caption: Ventral view
• 
  Species: Chiloglanis loffabrevum
  Caption: Ventral view
• 
  Species: Chiloglanis longibarbis
  Caption: Ventral view
• 
  Species: Chiloglanis nzerekore
  Caption: Ventral view
• 
  Species: Chiloglanis pezoldi
  Caption: Ventral view
• 
  Species: Chiloglanis pretoriae
  Caption: Ventral view
• 
  Species: Chiloglanis sp. (1)
  Caption: Ventral view
• 
  Species: Chiloglanis tweddlei
  Caption: Ventral view
• 
  Species: Chiloglanis waterloti
  Caption: Ventral view
• 
  Species: Euchilichthys guentheri
  Caption: Ventral view
• 
  Species: Euchilichthys guentheri
  Caption: Ventral view
• 
  Species: Synodontis acanthomias
  Caption: Ventral view
• 
  Species: Synodontis acanthoperca
  Caption: Ventral view
• 
  Species: Synodontis annectens
  Caption: Ventral view
• 
  Species: Synodontis ansorgii
  Caption: Ventral view
• 
  Species: Synodontis batensoda
  Caption: Ventral view
• 
  Species: Synodontis batesii
  Caption: Ventral view
• 
  Species: Synodontis dhonti
  Caption: Ventral view
• 
  Species: Synodontis fuelleborni
  Caption: Ventral view
• 
  Species: Synodontis grandiops
  Caption: Ventral view
• 
  Species: Synodontis granulosus
  Caption: Ventral view
• 
  Species: Synodontis laessoei
  Caption: Ventral view
• 
  Species: Synodontis macrops
  Caption: Ventral view
• 
  Species: Synodontis macrostigma
  Caption: Ventral view
• 
  Species: Synodontis macrostoma
  Caption: Ventral view
• 
  Species: Synodontis matthesi
  Caption: Ventral view
• 
  Species: Synodontis melanopterus
  Caption: Ventral view
• 
  Species: Synodontis nebulosus
  Caption: Ventral view
• 
  Species: Synodontis notatus
  Caption: Ventral view
• 
  Species: Synodontis orientalis
  Caption: Ventral view
• 
  Species: Synodontis petricola
  Caption: Ventral view
• 
  Species: Synodontis punctulatus
  Caption: Ventral view
• 
  Species: Synodontis resupinatus
  Caption: Ventral view
• 
  Species: Synodontis soloni
  Caption: Ventral view
• 
  Species: Synodontis sp. hybrid(1)
  Caption: Ventral view
• 
  Species: Synodontis steindachneri
  Caption: Ventral view
• 
  Species: Synodontis tessmanni
  Caption: Ventral view
• 
  Species: Synodontis tessmanni
  Caption: Ventral view
• 
  Species: Synodontis vanderwaali
  Caption: Ventral view
• 
  Species: Synodontis waterloti
  Caption: Ventral view
• 
  Species: Synodontis woosnami
  Caption: Ventral view
• 
  Species: Synodontis zanzibaricus
  Caption: Ventral view
• 
  Species: Phreatobius dracunculus
  Caption: Ventral view
• 
  Species: Pimelodus fur
  Caption: Ventral view
• 
  Species: Pimelodus pictus
  Caption: Ventral view
• 
  Species: Propimelodus araguayae
  Caption: Ventral view
• 
  Species: Sorubim maniradii
  Caption: Ventral view
• 
  Species: Zungaro zungaro
  Caption: Ventral view
• 
  Species: Plotosus abbreviatus
  Caption: Ventral view
• 
  Species: Plotosus papuensis
  Caption: Ventral view
• 
  Species: Batrochoglanis acanthochiroides
  Caption: Ventral view
• 
  Species: Batrochoglanis transmontanus
  Caption: Ventral view
• 
  Species: Cruciglanis pacifici
  Caption: Ventral view
• 
  Species: Microglanis aff. poecilus
  Caption: Ventral view
• 
  Species: Microglanis berbixae
  Caption: Ventral view
• 
  Species: Microglanis nigrolineatus
  Caption: Ventral view
• 
  Species: Microglanis variegatus
  Caption: Ventral view
• 
  Species: Parailia somalensis
  Caption: Ventral view
• 
  Species: Schilbe uranoscopus
  Caption: Ventral view
• 
  Species: Kryptopterus mononema
  Caption: Ventral view
• 
  Species: Kryptopterus palembangensis
  Caption: Ventral view
• 
  Species: Ompok hypophthalmus
  Caption: Ventral view
• 
  Species: Ompok supernus
  Caption: Ventral view
• 
  Species: Pterocryptis gangelica
  Caption: Ventral view
• 
  Species: Pterocryptis wynaadensis
  Caption: Ventral view
• 
  Species: Silurichthys ligneolus
  Caption: Ventral view
• 
  Species: Silurus grahami
  Caption: Ventral view
• 
  Species: Silurus mento
  Caption: Ventral view
• 
  Species: Caelatoglanis zonatus
  Caption: Ventral view
• 
  Species: Creteuchiloglanis bumdelingensis
  Caption: Ventral view
• 
  Species: Creteuchiloglanis gongshanensis
  Caption: Ventral view
• 
  Species: Creteuchiloglanis macropterus
  Caption: Ventral view
• 
  Species: Erethistoides longispinis
  Caption: Ventral view
• 
  Species: Erethistoides luteola
  Caption: Ventral view
• 
  Species: Erethistoides vescula
  Caption: Ventral view
• 
  Species: Exostoma berdmorei
  Caption: Ventral view
• 
  Species: Exostoma gaoligongense
  Caption: Ventral view
• 
  Species: Exostoma mangdechhuense
  Caption: Ventral view
• 
  Species: Exostoma tenuicaudatum
  Caption: Ventral view
• 
  Species: Exostoma vinciguerrae
  Caption: Ventral view
• 
  Species: Glaridoglanis andersonii
  Caption: Ventral view
• 
  Species: Glyptosternon oschanini
  Caption: Ventral view
• 
  Species: Glyptosternon oschanini
  Caption: Ventral view
• 
  Species: Glyptothorax anamalaiensis
  Caption: Ventral view
• 
  Species: Glyptothorax annandalei
  Caption: Ventral view
• 
  Species: Glyptothorax cavia
  Caption: Ventral view
• 
  Species: Glyptothorax chavomensis
  Caption: Ventral view
• 
  Species: Glyptothorax cous
  Caption: Ventral view
• 
  Species: Glyptothorax filicatus
  Caption: Ventral view
• 
  Species: Glyptothorax kashmirensis
  Caption: Ventral view
• 
  Species: Glyptothorax ketambe
  Caption: Ventral view
• 
  Species: Glyptothorax laosensis
  Caption: Ventral view
• 
  Species: Glyptothorax maceriatus
  Caption: Ventral view
• 
  Species: Glyptothorax malabarensis
  Caption: Ventral view
• 
  Species: Glyptothorax malabarensis
  Caption: Ventral view
• 
  Species: Glyptothorax nieuwenhuisi
  Caption: Ventral view
• 
  Species: Glyptothorax plectilis
  Caption: Ventral view
• 
  Species: Glyptothorax scrobiculus
  Caption: Ventral view
• 
  Species: Glyptothorax scrobiculus
  Caption: Ventral view
• 
  Species: Glyptothorax strabonis
  Caption: Ventral view
• 
  Species: Glyptothorax striatus
  Caption: Ventral view
• 
  Species: Gogangra viridescens
  Caption: Ventral view
• 
  Species: Myersglanis blythii
  Caption: Ventral view
• 
  Species: Oreoglanis colurus
  Caption: Ventral view
• 
  Species: Oreoglanis heteropogon
  Caption: Ventral view
• 
  Species: Oreoglanis laciniosa
  Caption: Ventral view
• 
  Species: Oreoglanis macroptera
  Caption: Ventral view
• 
  Species: Oreoglanis macroptera
  Caption: Ventral view
• 
  Species: Oreoglanis nakasathiani
  Caption: Ventral view
• 
  Species: Oreoglanis nakasathiani
  Caption: Ventral view
• 
  Species: Oreoglanis sudarai
  Caption: Ventral view
• 
  Species: Oreoglanis suraswadii
  Caption: Ventral view
• 
  Species: Oreoglanis tenuicauda
  Caption: Ventral view
• 
  Species: Oreoglanis vicina
  Caption: Ventral view
• 
  Species: Parachiloglanis benjii
  Caption: Ventral view
• 
  Species: Parachiloglanis bhutanensis
  Caption: Ventral view
• 
  Species: Parachiloglanis bhutanensis
  Caption: Ventral view
• 
  Species: Parachiloglanis drukyulensis
  Caption: Ventral view
• 
  Species: Pareuchiloglanis gracilicaudata
  Caption: Ventral view
• 
  Species: Pareuchiloglanis rhabdura
  Caption: Ventral view
• 
  Species: Pseudecheneis brachyura
  Caption: Ventral view
• 
  Species: Pseudecheneis brachyura
  Caption: Ventral view
• 
  Species: Pseudecheneis eddsi
  Caption: Ventral view
• 
  Species: Pseudecheneis intermedius
  Caption: Ventral view
• 
  Species: Pseudecheneis longipectoralis
  Caption: Ventral view
• 
  Species: Pseudecheneis sulcata
  Caption: Ventral view
• 
  Species: Pseudecheneis sympelvica
  Caption: Ventral view
• 
  Species: Pseudolaguvia austrina
  Caption: Ventral view
• 
  Species: Pseudolaguvia foveolata
  Caption: Ventral view
• 
  Species: Pseudolaguvia ribeiroi
  Caption: Ventral view
• 
  Species: Pseudolaguvia spicula
  Caption: Ventral view
• 
  Species: Pseudolaguvia virgulata
  Caption: Ventral view
• 
  Species: Ammoglanis natgeorum
  Caption: Ventral view
• 
  Species: Cambeva ytororo
  Caption: Ventral view
• 
  Species: Pseudostegophilus maculatus
  Caption: Ventral view
• 
  Species: Stegophilus insidiosus
  Caption: Ventral view
• 
  Species: Trichomycterus bomboizanus
  Caption: Ventral view
• 
  Species: Trichomycterus borellii
  Caption: Ventral view
• 
  Species: Trichomycterus brasiliensis
  Caption: Ventral view
• 
  Species: Trichomycterus migrans
  Caption: Ventral view
• 
  Species: Trichomycterus romeroi
  Caption: Ventral view
• 
  Species: Trichomycterus spegazzinii
  Caption: Ventral view
• 
  Species: Trichomycterus spilosoma
  Caption: Ventral view
• 
  Species: Ancistrus dolichopterus
  Caption: Ventral view - juvenile
• 
  Species: Peckoltia compta
  Caption: Ventral view - may be spotted or not
• 
  Species: Hypancistrus zebra
  Caption: Ventral view - note small mouth
• 
  Species: Panaqolus sp. `ACRE`
  Caption: Ventral view - Rio Amonia near the Brazilian town of Marechal Taumaturgo
• 
  Species: Hypancistrus zebra
  Caption: Ventral view - ten day old fry
• 
  Species: Pterygoplichthys gibbiceps
  Caption: Ventral view (albino)
• 
  Species: Megalechis thoracata
  Caption: Ventral view (female)
• 
  Species: Baryancistrus xanthellus
  Caption: Ventral view (female)
• 
  Species: Panaqolus maccus
  Caption: Ventral view (female)
• 
  Species: Pseudohemiodon sp. `MARBLED`
  Caption: Ventral view (female)
• 
  Species: Pseudacanthicus leopardus
  Caption: Ventral view (gravid female)
• 
  Species: Ancistrus sp. (L393)
  Caption: Ventral view (male)
• 
  Species: Hypancistrus furunculus
  Caption: Ventral view (male)
• 
  Species: Pseudohemiodon sp. `MARBLED`
  Caption: Ventral view (male)
• 
  Species: Farlowella acus
  Caption: Ventral view detailing belly scutes arrangement
• 
  Species: Farlowella acus
  Caption: Ventral view detailing belly scutes arrangement
• 
  Species: Sturisomatichthys aureus
  Caption: Ventral view illustrating scutes
• 
  Species: Hypancistrus sp. (L236)
  Caption: Ventral view of 2 cm juvenile
• 
  Species: Panaqolus albivermis
  Caption: Ventral view of adult
• 
  Species: Bagre urumacoensis
  Caption: Ventral view of broken neurocranium
• 
  Species: Hemibagrus microphthalmus
  Caption: Ventral view of female
• 
  Species: Brochiloricaria chauliodon
  Caption: Ventral view of female
• 
  Species: Loricariichthys anus
  Caption: Ventral view of female
• 
  Species: Spectracanthicus zuanoni
  Caption: Ventral view of female
• 
  Species: Farlowella platorynchus
  Caption: Ventral view of fry
• 
  Species: Leporacanthicus cf. galaxias(l240)
  Caption: Ventral view of fry
• 
  Species: Auchenipterichthys punctatus
  Caption: Ventral view of head
• 
  Species: Dentectus barbarmatus
  Caption: Ventral view of head
• 
  Species: Hemiancistrus punctulatus
  Caption: Ventral view of head
• 
  Species: Hypancistrus inspector
  Caption: Ventral view of head
• 
  Species: Hypancistrus sp. (L173)
  Caption: Ventral view of head
• 
  Species: Hypancistrus sp. (L236)
  Caption: Ventral view of head
• 
  Species: Hypancistrus sp. (L260)
  Caption: Ventral view of head
• 
  Species: Hypancistrus sp. (L500)
  Caption: Ventral view of head
• 
  Species: Loricariichthys hauxwelli
  Caption: Ventral view of head
• 
  Species: Loricariichthys hauxwelli
  Caption: Ventral view of head
• 
  Species: Panaqolus claustellifer
  Caption: Ventral view of head
• 
  Species: Panaqolus nocturnus
  Caption: Ventral view of head
• 
  Species: Peckoltia sp. (L140)
  Caption: Ventral view of head
• 
  Species: Spatuloricaria sp. `RIO SAN ALEJANDRO`
  Caption: Ventral view of head
• 
  Species: Spectracanthicus murinus
  Caption: Ventral view of head
• 
  Species: Synodontis velifer
  Caption: Ventral view of head
• 
  Species: Brachyplatystoma capapretum
  Caption: Ventral view of head
• 
  Species: Iheringichthys syi
  Caption: Ventral view of head
• 
  Species: Henonemus punctatus
  Caption: Ventral view of head
• 
  Species: Pseudobagarius eustictus
  Caption: Ventral view of holotype
• 
  Species: Hemibagrus divaricatus
  Caption: Ventral view of holotype
• 
  Species: Hemibagrus lacustrinus
  Caption: Ventral view of holotype
• 
  Species: Hemibagrus semotus
  Caption: Ventral view of holotype
• 
  Species: Mystus zeylanicus
  Caption: Ventral view of holotype
• 
  Species: Pseudomystus bomboides
  Caption: Ventral view of holotype
• 
  Species: Ancistrus formoso
  Caption: Ventral view of holotype
• 
  Species: Pseudancistrus reus
  Caption: Ventral view of holotype
• 
  Species: Transancistrus santarosensis
  Caption: Ventral view of holotype
• 
  Species: Ompok karunkodu
  Caption: Ventral view of holotype
• 
  Species: Conta pectinata
  Caption: Ventral view of holotype
• 
  Species: Erethistes longissimus
  Caption: Ventral view of holotype
• 
  Species: Exostoma effrenum
  Caption: Ventral view of holotype
• 
  Species: Exostoma ericinum
  Caption: Ventral view of holotype
• 
  Species: Exostoma peregrinator
  Caption: Ventral view of holotype
• 
  Species: Glyptothorax decussatus
  Caption: Ventral view of holotype
• 
  Species: Glyptothorax famelicus
  Caption: Ventral view of holotype
• 
  Species: Glyptothorax forabilis
  Caption: Ventral view of holotype
• 
  Species: Glyptothorax keluk
  Caption: Ventral view of holotype
• 
  Species: Glyptothorax pictus
  Caption: Ventral view of holotype
• 
  Species: Glyptothorax porrectus
  Caption: Ventral view of holotype
• 
  Species: Glyptothorax radiolus
  Caption: Ventral view of holotype
• 
  Species: Gogangra laevis
  Caption: Ventral view of holotype
• 
  Species: Pseudolaguvia assula
  Caption: Ventral view of holotype
• 
  Species: Pseudolaguvia fucosa
  Caption: Ventral view of holotype
• 
  Species: Pseudolaguvia inornata
  Caption: Ventral view of holotype
• 
  Species: Pseudolaguvia nubila
  Caption: Ventral view of holotype
• 
  Species: Pseudolaguvia viriosa
  Caption: Ventral view of holotype
• 
  Species: Chiloglanis igamba
  Caption: Ventral view of holotype.
• 
  Species: Chiloglanis kazumbei
  Caption: Ventral view of holotype.
• 
  Species: Chiloglanis orthodontus
  Caption: Ventral view of holotype.
• 
  Species: Peckoltia sp. (L076)
  Caption: Ventral view of juveniles
• 
  Species: Brochiloricaria chauliodon
  Caption: Ventral view of male
• 
  Species: Panaqolus albomaculatus
  Caption: Ventral view of male
• 
  Species: Rineloricaria aff. latirostris
  Caption: Ventral view of male
• 
  Species: Spectracanthicus zuanoni
  Caption: Ventral view of male
• 
  Species: Sturisomatichthys reinae
  Caption: Ventral view of male
• 
  Species: Sturisomatichthys reinae
  Caption: Ventral view of male's bristles
• 
  Species: Astroblepus sp. (2)
  Caption: Ventral view of mouth
• 
  Species: Chaetostoma platyrhynchus
  Caption: Ventral view of mouth
• 
  Species: Hypostomus sp. (L087)
  Caption: Ventral view of mouth
• 
  Species: Hypostomus sp. (L346)
  Caption: Ventral view of mouth
• 
  Species: Pseudohemiodon sp. `PERU I`
  Caption: Ventral view of mouth
• 
  Species: Synodontis aterrimus
  Caption: Ventral view of mouth
• 
  Species: Pareuchiloglanis cf. longicauda
  Caption: Ventral view of mouth
• 
  Species: Ariopsis ariopsilus
  Caption: Ventral view of neurocranium and nuchal plate
• 
  Species: Sciades latissimum
  Caption: Ventral view of neurocranium and nuchal plate
• 
  Species: Sciades peregrinus
  Caption: Ventral view of neurocranium and nuchal plate
• 
  Species: Glyptothorax distichus
  Caption: Ventral view of pectoral spine
• 
  Species: Pseudomystus heokhuii
  Caption: Ventral view of preserved specimen
• 
  Species: Synodontis zambezensis
  Caption: Ventral view of preserved specimen
• 
  Species: Leiarius perruno
  Caption: Ventral view of preserved specimen
• 
  Species: Erethistes jerdoni
  Caption: Ventral view of skeleton
• 
  Species: Chaetostoma formosae
  Caption: Ventral view of upper body
• 
  Species: Farlowella paraguayensis
  Caption: Ventral view of upper body
• 
  Species: Pseudacanthicus sp. (L343)
  Caption: Ventral view of upper body
• 
  Species: Pseudoloricaria laeviuscula
  Caption: Ventral view of upper body
• 
  Species: Pseudoloricaria laeviuscula
  Caption: Ventral view of upper body
• 
  Species: Rineloricaria sp. (2)
  Caption: Ventral view of upper body
• 
  Species: Spatuloricaria tuira
  Caption: Ventral view of upper body
• 
  Species: Synodontis violaceus
  Caption: Ventral view of upper body
• 
  Species: Rineloricaria aff. latirostris
  Caption: Ventral view of upper body of female
• 
  Species: Rineloricaria aff. latirostris
  Caption: Ventral view of upper body of male
• 
  Species: Rineloricaria eigenmanni
  Caption: Ventral view showing key ID features.
• 
  Species: Acestridium scutatum
  Caption: Ventral view showing plates
• 
  Species: Acestridium scutatum
  Caption: Ventral view showing plates
• 
  Species: Acestridium dichromum
  Caption: Ventral view showing preanal plate
• 
  Species: Pterygoplichthys disjunctivus
  Caption: Ventral view showing reticulated pattern
• 
  Species: Acestridium discus
  Caption: Ventral view showing scutes
• 
  Species: Otocinclus vittatus
  Caption: Ventral view showing yellow eggs
• 
  Species: Pimelodus albicans
  Caption: Ventral view three year old - 360mm SL
• 
  Species: Panaque sp. (L191)
  Caption: Ventral view, 32 cm TL, unsexed
• 
  Species: Ancistrus dolichopterus
  Caption: Ventral view, female
• 
  Species: Hemibagrus capitulum
  Caption: Ventral view, holotype of Hemibagrus chrysops
• 
  Species: Pseudancistrus kwinti
  Caption: Ventral view, male
• 
  Species: Auchenipterichthys coracoideus
  Caption: Ventral view, showing shape of pectoral girdle
• 
  Species: Glyptothorax schmidti
  Caption: Ventral view, showing thoracic adhesive apparatus
• 
  Species: Chaetostoma platyrhynchus
  Caption: Ventral view; Florencia, Rio Caqueta basin
• 
  Species: Exostoma sawmteai
  Caption: Ventral view.
• 
  Species: Acanthicus hystrix
  Caption: Ventral view. Rio Tocantins, near town of Estreito, Maranhão state, Brazil
• 
  Species: Ancistrus cuiabae
  Caption: Vermelho River
• 
  Species: Ancistrus martini
  Caption: Vermiculated ventrum
• 
  Species: Belonoglanis brieni
  Caption: Video
• 
  Species: Trachyglanis ineac
  Caption: Video
• 
  Species: Ageneiosus cf. magoi
  Caption: Video
• 
  Species: Asterophysus batrachus
  Caption: Video
• 
  Species: Auchenipterichthys coracoideus
  Caption: Video
• 
  Species: Centromochlus heckelii
  Caption: Video
• 
  Species: Spinipterus moijiri
  Caption: Video
• 
  Species: Trachelyopterus ceratophysus
  Caption: Video
• 
  Species: Trachycorystes trachycorystes
  Caption: Video
• 
  Species: Tympanopleura atronasus
  Caption: Video
• 
  Species: Tympanopleura cryptica
  Caption: Video
• 
  Species: Mystus carcio
  Caption: Video
• 
  Species: Rita chrysea
  Caption: Video
• 
  Species: Corydoras(ln1) aurofrenatus
  Caption: Video
• 
  Species: Corydoras(ln1) orcesi
  Caption: Video
• 
  Species: Corydoras(ln5) nijsseni
  Caption: Video
• 
  Species: Corydoras(ln5) nijsseni
  Caption: Video
• 
  Species: Corydoras(ln7) eques
  Caption: Video
• 
  Species: Corydoras(ln7) eques
  Caption: Video
• 
  Species: Corydoras(ln7) melanotaenia
  Caption: Video
• 
  Species: Corydoras(ln7) sp. (Cw016)
  Caption: Video
• 
  Species: Corydoras(ln8sc1) multiradiatus
  Caption: Video
• 
  Species: Corydoras(ln8sc3) pantanalensis
  Caption: Video
• 
  Species: Corydoras(ln8sc4) robustus
  Caption: Video
• 
  Species: Corydoras(ln8sc4) sp. (C138)
  Caption: Video
• 
  Species: Corydoras(ln8sc4) sp. (Cw058)
  Caption: Video
• 
  Species: Corydoras(ln9) evelynae
  Caption: Video
• 
  Species: Corydoras(ln9) habrosus
  Caption: Video
• 
  Species: Corydoras(ln9) panda
  Caption: Video
• 
  Species: Corydoras(ln9) sp. (C091)
  Caption: Video
• 
  Species: Corydoras(ln9) urucu
  Caption: Video
• 
  Species: Corydoras(ln9) weitzmani
  Caption: Video
• 
  Species: Dianema urostriatum
  Caption: Video
• 
  Species: Scleromystax barbatus
  Caption: Video
• 
  Species: Clarias alluaudi
  Caption: Video
• 
  Species: Clarias batrachus
  Caption: Video
• 
  Species: Clarias batrachus
  Caption: Video
• 
  Species: Anadoras grypus
  Caption: Video
• 
  Species: Hassar affinis
  Caption: Video
• 
  Species: Orinocodoras eigenmanni
  Caption: Video
• 
  Species: Physopyxis lyra
  Caption: Video
• 
  Species: Rhinodoras dorbignyi
  Caption: Video
• 
  Species: Cetopsorhamdia sp. `PERU`
  Caption: Video
• 
  Species: Heptapterus mustelinus
  Caption: Video
• 
  Species: Heteropneustes fossilis
  Caption: Video
• 
  Species: Ameiurus nebulosus
  Caption: Video
• 
  Species: Noturus exilis
  Caption: Video
• 
  Species: Acanthicus adonis
  Caption: Video
• 
  Species: Acanthicus adonis
  Caption: Video
• 
  Species: Acestridium dichromum
  Caption: Video
• 
  Species: Ancistrus sp. (L509)
  Caption: Video
• 
  Species: Chaetostoma formosae
  Caption: Video
• 
  Species: Chaetostoma sp. (L455)
  Caption: Video
• 
  Species: Delturus sp. (1)
  Caption: Video
• 
  Species: Farlowella paraguayensis
  Caption: video
• 
  Species: Hisonotus aky
  Caption: Video
• 
  Species: Hypancistrus sp. (L066)
  Caption: Video
• 
  Species: Hypancistrus zebra
  Caption: Video
• 
  Species: Hypostomus hermanni
  Caption: Video
• 
  Species: Hypostomus luteus
  Caption: Video
• 
  Species: Hypostomus luteus
  Caption: Video
• 
  Species: Lasiancistrus heteracanthus
  Caption: Video
• 
  Species: Lasiancistrus tentaculatus
  Caption: Video
• 
  Species: Leporacanthicus heterodon
  Caption: Video
• 
  Species: Loricaria simillima
  Caption: Video
• 
  Species: Panaqolus maccus
  Caption: Video
• 
  Species: Panaque sp. (L191)
  Caption: Video
• 
  Species: Parotocinclus sp. (3)
  Caption: Video
• 
  Species: Peckoltia sabaji
  Caption: Video
• 
  Species: Peckoltia sp. (L387)
  Caption: Video
• 
  Species: Peckoltia vittata
  Caption: Video
• 
  Species: Pseudacanthicus pirarara
  Caption: Video
• 
  Species: Pseudacanthicus pitanga
  Caption: Video
• 
  Species: Pseudacanthicus serratus
  Caption: Video
• 
  Species: Pseudohemiodon apithanos
  Caption: Video
• 
  Species: Rhadinoloricaria macromystax
  Caption: Video
• 
  Species: Rhadinoloricaria ommation
  Caption: Video
• 
  Species: Scobinancistrus sp. (L253)
  Caption: Video
• 
  Species: Spatuloricaria sp. `RIO NANAY`
  Caption: Video
• 
  Species: Synodontis angelicus
  Caption: Video
• 
  Species: Synodontis congicus
  Caption: Video
• 
  Species: Synodontis eupterus
  Caption: Video
• 
  Species: Synodontis flavitaeniatus
  Caption: Video
• 
  Species: Synodontis membranaceus
  Caption: Video
• 
  Species: Synodontis nigriventris
  Caption: Video
• 
  Species: Synodontis sp. hybrid(6)
  Caption: Video
• 
  Species: Brachyplatystoma juruense
  Caption: Video
• 
  Species: Brachyplatystoma platynemum
  Caption: Video
• 
  Species: Brachyplatystoma tigrinum
  Caption: Video
• 
  Species: Brachyplatystoma vaillantii
  Caption: Video
• 
  Species: Conorhynchos conirostris
  Caption: Video
• 
  Species: Leiarius pictus
  Caption: Video
• 
  Species: Luciopimelodus pati
  Caption: Video
• 
  Species: Parapimelodus sp. `MANAUS`
  Caption: Video
• 
  Species: Phractocephalus hemioliopterus
  Caption: Video
• 
  Species: Pimelodus ornatus
  Caption: Video
• 
  Species: Pimelodus pictus
  Caption: Video
• 
  Species: Platynematichthys notatus
  Caption: Video
• 
  Species: Platynematichthys notatus
  Caption: Video
• 
  Species: Sorubim lima
  Caption: Video
• 
  Species: Neosilurus ater
  Caption: Video
• 
  Species: Neosilurus ater
  Caption: Video
• 
  Species: Microglanis iheringi
  Caption: Video
• 
  Species: Pareutropius buffei
  Caption: Video
• 
  Species: Kryptopterus vitreolus
  Caption: Video
• 
  Species: Erethistes pusillus
  Caption: Video
• 
  Species: Erethistoides infuscatus
  Caption: Video
• 
  Species: Glyptothorax indicus
  Caption: Video
• 
  Species: Glyptothorax rugimentum
  Caption: Video
• 
  Species: Glyptothorax telchitta
  Caption: Video
• 
  Species: Pseudolaguvia austrina
  Caption: Video
• 
  Species: Pseudolaguvia shawi
  Caption: Video
• 
  Species: Sisor rabdophorus
  Caption: Video
• 
  Species: Tridensimilis brevis
  Caption: Video
• 
  Species: Pseudohemiodon apithanos
  Caption: Video - Adults
• 
  Species: Hypancistrus sp. (3)
  Caption: Video - breeding group
• 
  Species: Duringlanis romani
  Caption: Video - Eggs
• 
  Species: Corydoras(ln6) paleatus
  Caption: Video - Female laying eggs
• 
  Species: Chaetostoma formosae
  Caption: Video - Five week old fry
• 
  Species: Pseudohemiodon apithanos
  Caption: Video - fry
• 
  Species: Synodontis polli
  Caption: Video - fry
• 
  Species: Scobinancistrus aureatus
  Caption: Video - juvenile
• 
  Species: Scobinancistrus aureatus
  Caption: Video - juvenile
• 
  Species: Sorubimichthys planiceps
  Caption: Video - juvenile
• 
  Species: Dekeyseria picta
  Caption: Video - L052 pair spawned
• 
  Species: Chaetostoma formosae
  Caption: Video - Moment of egg hatching
• 
  Species: Pseudohemiodon sp. `MARBLED`
  Caption: Video - one day old fry
• 
  Species: Loricaria simillima
  Caption: Video - One hour old fry
• 
  Species: Pseudohemiodon sp. `MARBLED`
  Caption: Video - one month old fry
• 
  Species: Pseudohemiodon apithanos
  Caption: Video - pair
• 
  Species: Ancistrus cf. cirrhosus
  Caption: Video - Pair spawning
• 
  Species: Corydoras(ln8sc1) splendens
  Caption: Video - spawning
• 
  Species: Farlowella vittata
  Caption: Video - spawning on glass
• 
  Species: Farlowella vittata
  Caption: Video - spawning on spray bar
• 
  Species: Panaqolus changae
  Caption: Video - spawning tank
• 
  Species: Chaca chaca
  Caption: Video - uncommon movement
• 
  Species: Channallabes apus
  Caption: Video (slow-motion) from a high-speed recording zoomed in on the moment of prey capture / feeding terrestrially on a piece of fish.
• 
  Species: Corydoras(ln9) boesemani
  Caption: Video (underwater habitat)
• 
  Species: Corydoras(ln9) punctatus
  Caption: Video (underwater habitat)
• 
  Species: Guyanancistrus brevispinis
  Caption: Video (underwater habitat)
• 
  Species: Guyanancistrus brevispinis
  Caption: Video (underwater habitat)
• 
  Species: Harttia surinamensis
  Caption: Video (underwater habitat)
• 
  Species: Hypostomus surinamensis
  Caption: Video (underwater habitat)
• 
  Species: Hypostomus surinamensis
  Caption: Video (underwater habitat)
• 
  Species: Metaloricaria nijsseni
  Caption: Video (underwater habitat)
• 
  Species: Pseudancistrus depressus
  Caption: Video (underwater habitat)
• 
  Species: Rineloricaria sp. (L042)
  Caption: Video (underwater habitat)
• 
  Species: Panaqolus tankei
  Caption: Video habitat underwater
• 
  Species: Baryancistrus sp. `BELO MONTE`
  Caption: Video in habitat
• 
  Species: Tatia intermedia
  Caption: Video newly hatched fry
• 
  Species: Tatia intermedia
  Caption: Video of egg mass
• 
  Species: Tatia intermedia
  Caption: Video of egg mass
• 
  Species: Loricaria simillima
  Caption: Video of eggs
• 
  Species: Ancistrus sp. (L338)
  Caption: Video of eggs hatching
• 
  Species: Pseudacanthicus sp. (L065)
  Caption: Video of F1
• 
  Species: Bagarius bagarius
  Caption: Video of habitat,Ramganga River,Uttarakhand, India
• 
  Species: Channallabes apus
  Caption: Video showing terrestrial feeding behavior. A small piece of fish is presented on the terrestrial section of the aquarium.
• 
  Species: Synodontis lucipinnis
  Caption: Video spawning
• 
  Species: Phractocephalus hemioliopterus
  Caption: Video underwater
• 
  Species: Hypancistrus zebra
  Caption: Video: Air Xingu
• 
  Species: Clarias alluaudi
  Caption: Video: collecting in the wild
• 
  Species: Bunocephalus coracoideus
  Caption: Video: courtship behaviour
• 
  Species: Bunocephalus coracoideus
  Caption: Video: Eggs hatching
• 
  Species: Dekeyseria picta
  Caption: Video: eggs of L052
• 
  Species: Pseudohemiodon laticeps
  Caption: Video: feeding on tablet food
• 
  Species: Glyptothorax cf. pectinopterus
  Caption: Video: Habitat in Dehradun, Uttarakhand, India
• 
  Species: Hypostomus froehlichi
  Caption: Video: Habitat Underwater
• 
  Species: Pseudecheneis eddsi
  Caption: Video: Habitat,Gola River,Utarakhand, India
• 
  Species: Glyptothorax anamalaiensis
  Caption: Video: Habitat: Periyar River in Kerala.
• 
  Species: Loricaria birindellii
  Caption: Video: Habitat: Underwater leaflitter Rio Xingu
• 
  Species: Corydoras(ln8sc1) splendens
  Caption: Video: juveniles
• 
  Species: Trachelyopterus fisheri
  Caption: Video: Spawning embrace
• 
  Species: Ancistrus sp. `RIO FORMOSO II`
  Caption: view of belly after capture (female)