/siluriformes/loricariidae/rhinotocinclus/polyochrus/1.jpg "Rhinotocinclus polyochrus")
Lateral view/siluriformes/loricariidae/rhinotocinclus/polyochrus/2.jpg "Rhinotocinclus polyochrus")
Dorsal view/siluriformes/loricariidae/rhinotocinclus/polyochrus/3.jpg "Rhinotocinclus polyochrus")
Ventral view
 Cat-eLog Data Sheet | |
|---|---|
| Scientific Name | Rhinotocinclus polyochrus (Schaefer, 1988) |
| Common Name | |
| Type Locality | Río Mawarinuma tributary at Neblina base camp, Territory Federal Amazonas, Venezuela, 0°55'N, 66°10'W, elevation 120 meters. |
| Synonym(s) | Parotocinclus polyochrus |
| 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. |
| Species Information | |
| Size | 30mm or 1.2" 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. |
| Habitat Information | |
| Distribution | South America: upper Negro River basin. Amazon, Middle Amazon (Solimoes), Negro, Upper Negro (click on these areas to find other species found there) Log in to view data on a map. |
| IUCN Red List Category | Not Evaluated |
| Husbandry Information | |
| Breeding Reports | There is no breeding report. |
| Further Information | |
| Reference | Copeia 1988 (no. 1), pp 184, Figs. 1-2 |
| 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 is but a single wish to keep this species, see who wants what. |
| Spotters | Spotted this species somewhere? Click the binoculars! There is but a single record of this fish being seen, view it. |
| Forum BBCode | |
| Search for R. polyochrus | |
 | Look up R. polyochrus on AquaticRepublic.com |
 | Look up R. polyochrus on Fishbase |
 | Look up R. polyochrus on Encyclopedia of Life |
 | Look up R. polyochrus on Global Biodiversity Information Facility |
| LFS label creator ARN ref:1.4.1551.5260 | |
| Last Update | 2022 Dec 03 04:21 (species record created: 2013 Aug 28 13:32) |