All FishesLoricariidaeRhinotocinclus

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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 longirostris comes from the Latin longus, meaning long, and rostrum, meaning nose, in reference to the elongate snout.
Hop to next section 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.
Hop to next section 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)

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IUCN Red List Category Not Evaluated
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Breeding Reports There is no breeding report.
Hop to next section Further Information
Reference Naturalia (São Paulo) v. 13, pp 120, Fig. 2
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Last Update 2022 Jul 10 09:58 (species record created: 2013 Aug 28 13:30)