Cat-eLog Right Arrow Loricariidae Right Arrow Hypostominae Right Arrow Pterygoplichthys

Down arrow Cat-eLog Data Sheet
Scientific Name Pterygoplichthys disjunctivus  (Weber, 1991)
Common Names Vermiculated Sailfin Catfish
Schilderwels (German)
Type Locality Rio Madeira, Amazon R. system, Restauracao, Amazonas, Brazil.
Synonym(s) Ancistrus anisitsi, Ancistrus multiradiatus alternans, Liposarcus anisitsi, Liposarcus disjunctivus, Pterygoplichthys anisitsi, Pterygoplichthys juvens
Pronunciation terry gop LICK thees
Etymology Greek, pterygion, diminutive of pteryx = wing, fin + Greek, hoplon = weapon + Greek, ichthys = fish. 
Down arrow Species Information
Size 700mm or 27.6" SL. Find near, nearer or same sized spp.
Identification Pterygoplichthys can be identified by the number of rays in the dorsal fin. Ten or more dorsal rays (usually more than 10) indicates that it's a Pterygoplichthys. Most other plecos have 8 or fewer rays (in particular the larger Hypostomus species that are most likely to be confused with Pterygoplichthys).

This species is most likely to be confused with P. pardalis. The pattern on the abdomen is the most useful external key: P. pardalis has a spotted pattern, where P. disjunctivus has a vermiculated pattern. For more info see: Zootaxa 1109: 57?68 (2006)

Sexing Comparison of the genital papilla in mature fish shows the differences in the sexes to the trained eye. In males this is a small yet thick stump which noticeably protrudes from the fish's undercarriage. In females it is less obvious and is recessed or lies flat with the body.
Down arrow Habitat Information
Distribution South America: Madeira River basin. Introduced to countries outside its native range.
Amazon, Middle Amazon (Solimoes), Madeira (click on these areas to find other species found there)
La Plata, Paraná, Paraguay (click on these areas to find other species found there)
La Plata, Paraná, Middle Paraná (click on these areas to find other species found there)
La Plata, Uruguay (click on these areas to find other species found there)
La Plata, Paraná, Middle Paraná, Bermejo (click on these areas to find other species found there)
La Plata, Paraná, Middle Paraná, Bermejo, Lipeo (click on these areas to find other species found there)

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IUCN Red List Category Not Evaluated
Down arrow Husbandry Information
Feeding Omnivorous and a good algae eater, especially when young.
Suggested Tankmates Almost any medium sized community fish.
Breeding Unreported.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Revue Suisse de Zoologie v. 98 (no. 3), pp 638.
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Last Update 2020 Nov 16 03:27 (species record created: 2002 Sep 25 00:00)