Cat-eLog Right Loricariidae Right Hypostominae Right Hopliancistrus  |  | 

Down Cat-eLog Data Sheet
Scientific Name Hopliancistrus tricornis  Isbrücker & Nijssen, 1989
Common Names L212, Hooked Pleco
Ensfarvet Krogsugemalle (Denmark), Kroget Sugemalle (Denmark), Tricornis-Hopliancistrus (Germany)
Type Locality Poça de Pedra on Rio Tapajós, São Luis, Pará State, Brazil.
Etymology (Greek)Hoplon=Weapon + (Greek)agkistron=hook. 
Down Species Information
Size 104mm or 4.1" SL. Find near, nearer or same sized spp.
Identification A key to the genus Hopliancistrus can be found here.
Male Hopliancistrus develop very stout recurved odontodes at the corners of the snout. The presence of three stout, strongly recurved odontodes in the cheek mass putatively separate Hopliancistrus from all other Ancistrini; however, the actual number of hypertrophied cheek odontodes is 1-16, with 1-5 of those being stout and recurved. The only other ancistrin that develops hypertrophied odontodes just in the corners of the snout is Lasiancistrus, but Lasiancistrus have the odontodes very thin, like long whiskers; also, Lasiancistrus has three rows of plates on the caudal peduncle vs. five in Hopliancistrus. (Adapted from Armbruster).
Down Habitat Information
Distribution South America: Tapajós and Xingu River basins in Brazil.
Amazon, Lower Amazon, Tapajós (click on these areas to find other species found there)
Amazon, Lower Amazon, Xingu (click on these areas to find other species found there)

Log in to view data on a map.
IUCN Red List Category Endangered, range map and more is available on the IUCN species page. Last assessed 2018.
Temperature 23.0-28.0°C or 73.4-82.4°F (Show species within this range)
Down Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Down Further Information
Reference Die Aquarien- und Terrarienzeitschrift (DATZ) v. 42 (no. 9), pp 543, Figs. 5-7.
Registered Keepers There is but a single registered keeper, view all "my cats" data.
Wishlists Love this species? Click the heart to add it to your wish list.
There are 2 wishes to keep this species, see who wants what.
Spotters Spotted this species somewhere? Click the binoculars!
There are 2 records of this fish being seen, view them all.
Forum BBCode
Search for H. tricornis
Look up Look up H. tricornis on
Look up on Fishbase Look up H. tricornis on Fishbase
Look up on Encyclopedia of Life Look up H. tricornis on Encyclopedia of Life
Look up on Global Biodiversity Information Facility Look up H. tricornis on Global Biodiversity Information Facility
Hopliancistrus tricornis QR code LFS label creator
ARN ref:1.4.321.1798
Last Update 2023 Aug 12 07:40 (species record created: 2006 Dec 24 06:14)