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Down Cat-eLog Data Sheet
Scientific Name Stellantia siderea    Armbruster, 2004
Common Names Flatheaded Venezuela Pleco
Fladhovedet Venezuela-sugemalle (Denmark)
Type Locality Río Siapa from 10-15 km downstream, Río Casiquiare - Río Negro drainage, 01.50000°, -065.71667°, Río Orinoco drainage, Amazonas, Venezuela.
Synonym(s) Pseudancistrus sidereus
Etymology This specific epithet refers to the dark background which makes the white spots look like stars (sidereus=of the stars).
Down Species Information
Size 176mm or 6.9" SL. Find near, nearer or same sized spp.
Identification Pseudancistrus sidereus is diagnosed by a unique modification of the ventral plates on the caudal peduncle. In loricariids, the plates of the ventral row on the caudal peduncle are typically bent at an approximately 90° angle to follow the contour of the body. The bend is often the site of a slight keel formed from one or more rows of slightly longer odontodes. In P. sidereus, the keel is accentuated by having the dorsal laminae of the plates strongly concave. Although some loricariids may have the dorsal laminae slightly concave, it is much more pronounced in P. sidereus.
Down Habitat Information
Distribution South America: Venezuela.
Orinoco, Upper Orinoco (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes), Negro, Upper Negro, Casiquiare (click on these areas to find other species found there)

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IUCN Red List Category
Not Evaluated
Down Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Down Further Information
Reference Zootaxa No. 628, pp 8, Fig. 3.
Registered Keepers There are 2 registered keepers, view all "my cats" data.
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There are 5 records of this fish being seen, view them all.
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Stellantia siderea QR code LFS label creator
ARN ref:1.4.1597.608
Last Update 2025 Jan 10 10:32 (species record created: 2007 Jan 22 22:11)