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/siluriformes/pseudopimelodidae/microglanis/cottoides/6.jpg "Microglanis cottoides")
Species: Microglanis cottoides
Caption: UFRGS 20930, Biguacu basin, Antonio Carlos, SC, Brazil/siluriformes/pseudopimelodidae/microglanis/cottoides/7.jpg "Microglanis cottoides")
Species: Microglanis cottoides
Caption: UFRGS 20930, Biguacu basin, Antonio Carlos, SC, Brazil. Dorsal view/siluriformes/callichthyidae/corydoras(ln9)/benattii/6.jpg "Corydoras(ln9) benattii")
Species: Corydoras(ln9) benattii
Caption: Under water/siluriformes/loricariidae/pseudancistrus/sidereus/3.jpg "Pseudancistrus sidereus")
Species: Pseudancistrus sidereus
Caption: Underside of caudal peduncle/siluriformes/heptapteridae/goeldiella/eques/4.jpg "Goeldiella eques")
Species: Goeldiella eques
Caption: Underside of head/siluriformes/loricariidae/megalancistrus/sp(l234)/6.jpg "Megalancistrus sp. (L234)")
Species: Megalancistrus sp. (L234)
Caption: Underside of head showing everted spines/siluriformes/ictaluridae/pylodictis/olivaris/7.jpg "Pylodictis olivaris")
Species: Pylodictis olivaris
Caption: Underwater/siluriformes/ictaluridae/pylodictis/olivaris/3.jpg "Pylodictis olivaris")
Species: Pylodictis olivaris
Caption: Underwater/siluriformes/loricariidae/chaetostoma/sp(l335)/1.jpg "Chaetostoma sp. (L335)")
Species: Chaetostoma sp. (L335)
Caption: Underwater/siluriformes/loricariidae/guyanancistrus/brevispinis/2.jpg "Guyanancistrus brevispinis")
Species: Guyanancistrus brevispinis
Caption: Underwater/siluriformes/loricariidae/panaqolus/tankei/5.jpg "Panaqolus tankei")
Species: Panaqolus tankei
Caption: Underwater/siluriformes/loricariidae/panaque/nigrolineatus/14.jpg "Panaque nigrolineatus")
Species: Panaque nigrolineatus
Caption: Underwater/siluriformes/loricariidae/rineloricaria/sp(l042)/4.jpg "Rineloricaria sp. (L042)")
Species: Rineloricaria sp. (L042)
Caption: Underwater/siluriformes/loricariidae/rineloricaria/sp(l042)/1.jpg "Rineloricaria sp. (L042)")
Species: Rineloricaria sp. (L042)
Caption: Underwater/siluriformes/plotosidae/cnidoglanis/macrocephalus/1.jpg "Cnidoglanis macrocephalus")
Species: Cnidoglanis macrocephalus
Caption: Underwater/siluriformes/loricariidae/hisonotus/sp`rio_xingu`/2.jpg "Hisonotus sp. `RIO XINGU`")
Species: Hisonotus sp. `RIO XINGU`
Caption: Underwater - Rio Xingu/siluriformes/loricariidae/hypostomus/sp(l087)/5.jpg "Hypostomus sp. (L087)")
Species: Hypostomus sp. (L087)
Caption: Underwater - Rio Xingu/siluriformes/loricariidae/aphanotorulus/emarginatus/13.jpg "Aphanotorulus emarginatus")
Species: Aphanotorulus emarginatus
Caption: Underwater - Rio Xingu (Vitoria)/siluriformes/callichthyidae/corydoras(ln6)/carlae/4.jpg "Corydoras(ln6) carlae")
Species: Corydoras(ln6) carlae
Caption: Underwater biotope/siluriformes/bagridae/bagrus/meridionalis/6.jpg "Bagrus meridionalis")
Species: Bagrus meridionalis
Caption: Underwater habitat: Lake Malawi/siluriformes/loricariidae/baryancistrus/sp`belo_monte`/3.jpg "Baryancistrus sp. `BELO MONTE`")
Species: Baryancistrus sp. `BELO MONTE`
Caption: Underwater in habitat/siluriformes/loricariidae/baryancistrus/sp`belo_monte`/4.jpg "Baryancistrus sp. `BELO MONTE`")
Species: Baryancistrus sp. `BELO MONTE`
Caption: Underwater in habitat/siluriformes/loricariidae/parancistrus/nudiventris/2.jpg "Parancistrus nudiventris")
Species: Parancistrus nudiventris
Caption: Underwater in habitat/siluriformes/loricariidae/spectracanthicus/punctatissimus/9.jpg "Spectracanthicus punctatissimus")
Species: Spectracanthicus punctatissimus
Caption: Underwater in habitat/siluriformes/loricariidae/spectracanthicus/punctatissimus/13.jpg "Spectracanthicus punctatissimus")
Species: Spectracanthicus punctatissimus
Caption: Underwater in habitat (sport var.) L016/siluriformes/auchenipteridae/balroglanis/schultzi/4.jpg "Balroglanis schultzi")
Species: Balroglanis schultzi
Caption: Underwater in Rio Xingu habitat/siluriformes/loricariidae/baryancistrus/xanthellus/16.jpg "Baryancistrus xanthellus")
Species: Baryancistrus xanthellus
Caption: Underwater in Rio Xingu habitat/siluriformes/aspredinidae/amaralia/oviraptor/1.jpg "Amaralia oviraptor")
Species: Amaralia oviraptor
Caption: Underwater Rio da Prata, Mato Grosso do Sul,Brazil/siluriformes/heptapteridae/rhamdia/laticauda/5.jpg "Rhamdia laticauda")
Species: Rhamdia laticauda
Caption: Underwater shot - Cenote Azul nr Cancun, Mexico/siluriformes/heptapteridae/rhamdia/laticauda/4.jpg "Rhamdia laticauda")
Species: Rhamdia laticauda
Caption: Underwater shot - Cenote Azul nr Cancun, Mexico/siluriformes/bagridae/bagrus/meridionalis/4.jpg "Bagrus meridionalis")
Species: Bagrus meridionalis
Caption: Underwater shot of Male and offspring/siluriformes/loricariidae/baryancistrus/sp`belo_monte`/1.jpg "Baryancistrus sp. `BELO MONTE`")
Species: Baryancistrus sp. `BELO MONTE`
Caption: Underwater: Adult male/siluriformes/heptapteridae/rhamdia/laticauda/6.jpg "Rhamdia laticauda")
Species: Rhamdia laticauda
Caption: Underwater: Gran Cenote (West of Tulum, Mexico)/siluriformes/heptapteridae/rhamdia/laticauda/7.jpg "Rhamdia laticauda")
Species: Rhamdia laticauda
Caption: Underwater: Gran Cenote (West of Tulum, Mexico)/siluriformes/clariidae/clarias/gariepinus/26.jpg "Clarias gariepinus")
Species: Clarias gariepinus
Caption: Underwater: Lake Malawi/siluriformes/bagridae/hemibagrus/spilopterus/2.jpg "Hemibagrus spilopterus")
Species: Hemibagrus spilopterus
Caption: Underwater: Rajaprabha artificial lake/siluriformes/bagridae/hemibagrus/spilopterus/3.jpg "Hemibagrus spilopterus")
Species: Hemibagrus spilopterus
Caption: Underwater: Rajaprabha artificial lake/siluriformes/bagridae/hemibagrus/spilopterus/4.jpg "Hemibagrus spilopterus")
Species: Hemibagrus spilopterus
Caption: Underwater: Rajaprabha artificial lake, Thailand/siluriformes/loricariidae/ancistrus/sp`nhamunda`/4.jpg "Ancistrus sp. `NHAMUNDA`")
Species: Ancistrus sp. `NHAMUNDA`
Caption: Underwater: Rio Nhamundá, Brazil/siluriformes/loricariidae/hypancistrus/sp(l475)/6.jpg "Hypancistrus sp. (L475)")
Species: Hypancistrus sp. (L475)
Caption: Underwater: Rio Nhamundá, Brazil/siluriformes/loricariidae/leporacanthicus/galaxias/14.jpg "Leporacanthicus galaxias")
Species: Leporacanthicus galaxias
Caption: Underwater: Rio Nhamundá, Brazil/siluriformes/loricariidae/peckoltia/sp(l477)/11.jpg "Peckoltia sp. (L477)")
Species: Peckoltia sp. (L477)
Caption: Underwater: Rio Nhamundá, Brazil/siluriformes/ictaluridae/ameiurus/melas/13.jpg "Ameiurus melas")
Species: Ameiurus melas
Caption: Unicorn Lake, MD/siluriformes/ictaluridae/ameiurus/melas/14.jpg "Ameiurus melas")
Species: Ameiurus melas
Caption: Unicorn Lake, MD/siluriformes/loricariidae/pseudacanthicus/sp(l406)/4.jpg "Pseudacanthicus sp. (L406)")
Species: Pseudacanthicus sp. (L406)
Caption: Unique camouflage appears to be on all P. histrix/siluriformes/doradidae/platydoras/armatulus/12.jpg "Platydoras armatulus")
Species: Platydoras armatulus
Caption: Upper Amazon (Iquitos)/siluriformes/sisoridae/glyptothorax/trilineatus/5.jpg "Glyptothorax trilineatus")
Species: Glyptothorax trilineatus
Caption: Upper Irrawady/siluriformes/horabagridae/pachypterus/khavalchor/3.jpg "Pachypterus khavalchor")
Species: Pachypterus khavalchor
Caption: Upper jaw w/ blunt teeth; lower jaw w/ sharp teeth/siluriformes/heptapteridae/pimelodella/cristata/4.jpg "Pimelodella cristata")
Species: Pimelodella cristata
Caption: Upper Nickerie River/siluriformes/amphiliidae/zaireichthys/maravensis/1.jpg "Zaireichthys maravensis")
Species: Zaireichthys maravensis
Caption: Upper reaches of Bua River, Malawi/siluriformes/auchenipteridae/balroglanis/schultzi/7.jpg "Balroglanis schultzi")
Species: Balroglanis schultzi
Caption: Upper Rio Negro, Brazil/siluriformes/auchenipteridae/tetranematichthys/wallacei/13.jpg "Tetranematichthys wallacei")
Species: Tetranematichthys wallacei
Caption: Upper Rio Negro, Brazil/siluriformes/auchenipteridae/trachelyichthys/decaradiatus/4.jpg "Trachelyichthys decaradiatus")
Species: Trachelyichthys decaradiatus
Caption: Upper Rio Negro, Brazil/siluriformes/callichthyidae/corydoras(ln5)/pauciradiatus/15.jpg "Corydoras(ln5) pauciradiatus")
Species: Corydoras(ln5) pauciradiatus
Caption: Upper Rio Negro, Brazil/siluriformes/doradidae/anduzedoras/oxyrhynchus/5.jpg "Anduzedoras oxyrhynchus")
Species: Anduzedoras oxyrhynchus
Caption: Upper Rio Negro, Brazil/siluriformes/doradidae/astrodoras/asterifrons/3.jpg "Astrodoras asterifrons")
Species: Astrodoras asterifrons
Caption: Upper Rio Negro, Brazil/siluriformes/doradidae/astrodoras/asterifrons/4.jpg "Astrodoras asterifrons")
Species: Astrodoras asterifrons
Caption: Upper Rio Negro, Brazil/siluriformes/doradidae/platydoras/hancockii/4.jpg "Platydoras hancockii")
Species: Platydoras hancockii
Caption: Upper Rio Negro, Brazil/siluriformes/loricariidae/ancistrus/dolichopterus/32.jpg "Ancistrus dolichopterus")
Species: Ancistrus dolichopterus
Caption: Upper Rio Negro, Brazil/siluriformes/loricariidae/ancistrus/dolichopterus/34.jpg "Ancistrus dolichopterus")
Species: Ancistrus dolichopterus
Caption: Upper Rio Negro, Brazil/siluriformes/loricariidae/dekeyseria/scaphirhynchus/5.jpg "Dekeyseria scaphirhynchus")
Species: Dekeyseria scaphirhynchus
Caption: Upper Rio Negro, Brazil/siluriformes/pimelodidae/pimelodus/blochii/14.jpg "Pimelodus blochii")
Species: Pimelodus blochii
Caption: Upper Rio Negro, Brazil/siluriformes/sisoridae/bagarius/sp`salween`/1.jpg "Bagarius sp. `SALWEEN`")
Species: Bagarius sp. `SALWEEN`
Caption: Upper Salween River/siluriformes/loricariidae/ancistrus/martini/1.jpg "Ancistrus martini")
Species: Ancistrus martini
Caption: Upper Zulia River. Photo by Gustavo Ballen./siluriformes/pimelodidae/pimelodus/maculatus/9.jpg "Pimelodus maculatus")
Species: Pimelodus maculatus
Caption: Uruguay/siluriformes/loricariidae/hemiancistrus/punctulatus/1.jpg "Hemiancistrus punctulatus")
Species: Hemiancistrus punctulatus
Caption: Uruguay, Cerro Largo Dept, Paso Sarandi, Arroyo