Cat-eLog Right Loricariidae Right Rhinotocinclus  |  | 

Down Cat-eLog Data Sheet
Scientific Name Rhinotocinclus longirostris  (Garavello, 1988)
Common Name
Type Locality Rio Preto da Eva, Manaus-Itacoatiara highway, kilometer 80, Manaus, Amazonas, Brazil.
Synonym(s) Parotocinclus longirostris
Pronunciation lawn ji ross triss
Etymology Rhinotocinclus is a combination of the Greek Rhinos meaning beak or snout and Otocinclus, a genus of Hypoptopomatinae, in allusion to the conspicuous and elegant snout of most of its species. longirostris comes from the Latin longus, meaning long, and rostrum, meaning nose, in reference to the elongate snout.
Down Species Information
Size 27mm or 1.1" SL. Find near, nearer or same sized spp.
Identification Rhinotocinclus is diagnosed from all other genera in Hypoptopomatinae by having the canal cheek plate on the ventral surface of the head posteriorly elongated and contacting the cleithrum (vs. canal cheek plate rounded or mesially elongated and not expanded backwards to contact the pectoral girdle).
Sexing Males possess a urogenital papilla immediately behind the anus, and a variably deep skin fold along the first, unbranched pelvic-fin ray (vs. both absent in females). Also, males possess a much larger nostril than females, causing the internarial distance to be smaller in males. The larger size of the olfactory organ of males also causes an elevation in the snout profile immediately in front of the eyes, which can be easily seen in lateral view. In most species, males also possess longer pelvic fins than females, with the males' pelvic fins reaching or almost reach to the anal-fin origin.
Down Habitat Information
Distribution South America: Amazon River drainage.
Amazon (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes), Preto da Eva (click on these areas to find other species found there). Maps are currently offline pending redevelopment (July/August 2024).
IUCN Red List Category
Not Evaluated
Down Husbandry Information
Breeding Reports There is no breeding report.
Down Further Information
Reference Naturalia (São Paulo) v. 13, pp 120, Fig. 2
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 R. longirostris
Look up Look up R. longirostris on
Look up on Fishbase Look up R. longirostris on Fishbase
Look up on Encyclopedia of Life Look up R. longirostris on Encyclopedia of Life
Look up on Global Biodiversity Information Facility Look up R. longirostris on Global Biodiversity Information Facility
Rhinotocinclus longirostris QR code LFS label creator
ARN ref:1.4.1551.5256
Last Update 2022 Dec 03 05:10 (species record created: 2013 Aug 28 13:30)