|All Fishes Data Sheet|
|Scientific Name||Pterygoplichthys multiradiatus (Hancock, 1828)|
|Common Names||Orinoco Sailfin Catfish
Sejlfinnet Sugemalle (Denmark), Vielgepunkteter Schilderwels (Germany)
|Type Locality||[Probably near Santa Catalina, Orinoco system], Demerara, Guyana.|
|Pronunciation||terry gop LICK thees|
|Etymology||Greek, pterygion, diminutive of pteryx = wing, fin + Greek, hoplon = weapon + Greek, ichthys = fish. Multiradiatus in reference to the number of rays in the dorsal rays (it was originally described as a species in Hypostomus, which normally has 8 rays in the dorsal fin).|
|Size||500mm or 19.7" 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).|
|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.|
|Distribution||South America: Orinoco River basin. Reported from Argentina. Introduced and established in Taiwan, mainland USA and Hawaii.
Orinoco (click on these areas to find other species found there)
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|IUCN Red List Category||Not Evaluated|
|pH||6.5 - 7.8|
|Temperature||23.0-27.0°C or 73.4-80.6°F (Show species within this range)|
|Feeding||Omnivorous and a good algae eater, especially when young.|
|Suggested Tankmates||Almost any medium sized community fish.|
|Breeding||Unreported in captivity, in nature, the male fish occupies a tunnel in soft river bank in which the eggs are laid and guarded. The egg mass of bright orange eggs contains thousands of eggs.|
|Breeding Reports||There is no breeding report.|
|Reference||Zoological Journal, London v. 4, pp 246.|
|Registered Keepers||Keeping this species? Why not .
There is no registered keeper.
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There is no wish to keep this species.
|Spotters||Spotted this species somewhere? Click the binoculars!
There is but a single record of this fish being seen, view it.
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|Look up Pterygoplichthys multiradiatus on Encyclopedia of Life|
|Look up Pterygoplichthys multiradiatus on Global Biodiversity Information Facility|
|LFS label creator.|
|Last Update||2022 Jul 17 09:01 (species record created: 2002 Sep 25 00:00)|