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Down arrow Cat-eLog Data Sheet
Scientific Name Rhinotocinclus britskii  Boeseman, 1974
Common Name Dwarf Pleco
Type Locality Left tributary of Coppename River, Suriname, 3°51'N, 56°55'W.
Synonym(s) Parotocinclus amazonensis, Parotocinclus aripuanensis, Parotocinclus britskii
Down arrow Species Information
Size 60mm or 2.4" 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 arrow Habitat Information
Distribution South America: Orinoco River basin and Atlantic coastal drainages of the Guianas.
Guyana Waters, Coastal Rivers of Guyanas (click on these areas to find other species found there)
Guyana Waters, Coastal Rivers of Guyanas, Suriname Coastal Rivers (click on these areas to find other species found there)
Orinoco (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes) (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes), Madeira, Aripuanã (click on these areas to find other species found there)

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IUCN Red List Category Not Evaluated
Temperature 22.0-27.0°C or 71.6-80.6°F (Show species within this range)
Down arrow Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen (Series C, Biological and Medical Sciences) v. 77 (no. 3), pp267, Fig. 2; Pl. 2.
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Last Update 2022 Jul 13 17:41 (species record created: 2009 Sep 24 13:04)