PlanetCatfish.com - Lasiancistrus caucanus (Loricariidae) Cat-eLog

Rio San Juan, Choco, Colombia
Preserved specimen - Dorsal view
Preserved specimen - close-up of dorsal head view
Preserved specimen - lateral view
Preserved specimen - close-up of head

Cat-eLog Data Sheet
Scientific Name	**Lasiancistrus caucanus** Eigenmann, 1912
Common Name
Type Locality	Cartago, Colombia.
Synonym(s)	Ancistrus planiceps, Hemiancistrus mayoloi, Lasiancistrus mayoloi, Lasiancistrus planiceps, Lasiancistrus volcanensis
Pronunciation	LASS ee an SISS truss
Etymology	Greek, lasios, -a, -on = hairy + Greek, agkistron = hook Named after the river which it's native to.
Species Information
Size	175mm or 6.9" SL. Find near, nearer or same sized spp.
Identification	Adult Lasiancistrus can be separated from all other loricariids by the presence of whisker-like odontodes on the cheeks. In addition, they have evertible cheek odontodes; three rows of plates on the caudal peduncle; and a modified, bar-shaped opercle. The caudal fin is slightly emarginate to forked, with the lower lobe longer than upper. Nuptial males have tentacules on the pectoral-fin spines longer than their associated odontodes; and transluscent tentacules on the snout that have odontodes associated with them. Nuptial males lack hypertrophied odontodes on top of the head and lack long, bristle-like odontodes on the leading edge of the pectoral-fin spine.
Sexing	Per Armbruster, nuptial males with whiskerlike odontodes at the anterolateral corner of the snout, else as in genus description.
General Remarks	CLOFFSCA lists 17.5cm TL.
Habitat Information
Distribution	South America: Cauca River basin, Colombia. Colombia Caribbean Rivers, Magdalena, Cauca, Lower Cauca, Upper Cauca (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Least Concern , range map and more is available on the IUCN species page. Last assessed 2019.
Husbandry Information
Breeding	Unreported.
Breeding Reports	There is no breeding report.
Further Information
Reference	Indiana University Studies No. 16 [sic No. 8], pp 11.
Registered Keepers	There is no registered keeper.
Wishlists	Love this species? Click the heart to add it to your wish list. There is no wish to keep this species.
Spotters	Spotted this species somewhere? Click the binoculars! There are 3 records of this fish being seen, view them all.
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	LFS label creator ARN ref:1.4.84.1258
Last Update	2025 Jan 02 01:40 (species record created: 2004 Nov 11 00:00)