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|All Fishes Data Sheet|
|Scientific Name||Rhinotocinclus acuen Silva, Roxo & Oliveira, 2014|
|Type Locality||Mato Grosso State, Municipality of Querência, rio Xingu basin, 13°00'26"S, 52°11'27"W, Brazil.|
|Etymology||The specific name acuen is in reference to the Xavante indigenous peoples, who in anthropological literature are known as 'acuen'. These people are constituted by the natives inhabiting the east of the Mato Grosso State, living in the margins of the rivers Culuene, Xingu, Mortes and Araguaia.|
|Size||29mm 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.|
|Distribution||South America: upper rio Xingu basin in Mato Grosso State, Brazil.
Amazon, Lower Amazon, Xingu, Upper Xingu (click on these areas to find other species found there)
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|IUCN Red List Category||Not Evaluated|
|Breeding Reports||There is no breeding report.|
|Reference||ZooKeys No. 442, pp 107, Figs. 1, 3-6.|
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There is no registered keeper.
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|Last Update||2022 Jul 10 10:16 (species record created: 2016 Jul 26 14:36)|