Cat-eLog Right Arrow Loricariidae Right Arrow Hypoptopomatinae Right Arrow Otothyropsis

Down arrow Cat-eLog Data Sheet
Scientific Name Otothyropsis biamnicus  Calegari, Lehmann A. & Reis, 2013
Common Name
Type Locality Telêmaco Borba, ribeirão Harmonia, tributary to rio Tibagi basin, rio Paraná drainage, 24°18’19"S, 50°36’23"W, Paraná State, Brazil.
Etymology Otothyropsis: The first part of the name is from Greek (otos = ear and thyris = window) and is in reference to the Hypoptopomatinae genus Otothyris, to which the new taxon is closely related. The second part is from the Greek (opsis = relating to sight and appearance); hence, resembling a hypoptopomatine fish. The species name biamnicus From the Latin bi, meaning two, and amnicus, meaning inhabitant of a river, in allusion to the fact that the species is distributed in both the Iguaçu and Tibagi basins.
Down arrow Species Information
Size 38mm or 1.5" SL. Find near, nearer or same sized spp.
Identification From original description "Otothyropsis biamnicus is distinguished from its congeners by having shorter pectoral-fin spine (18.6–21.3 vs. 21.4–30.4% SL in remaining species). It also has a lower caudal peduncle (7.6–9.0 vs. 9.3–11.0 in O. marapoama and 9.7–11.5% SL in O. piribebuy), deeper caudal peduncle (7.6–9.0 vs. 6.2–7.6% SL in O. polyodon); and dorsal-fin spinelet triangular in shape (vs. spinelet rectangular or quadrangular).
Sexing Male hypoptopomins posses a urogenital papilla located immediately posterior to the anus. It is absent in females.
Down arrow Habitat Information
Distribution Found in tributaries of Rio Iguaçu, in Santa Catarina and Paraná States, and rio Tibagi, Paraná State, both in rio Paraná basin, Brazil.
La Plata, Paraná, Iguazu (click on these areas to find other species found there)
La Plata, Paraná, Paranapanema, Tibagi (click on these areas to find other species found there)
La Plata, Paraná, Paranapanema, Upper Paranapanema (click on these areas to find other species found there)

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IUCN Red List Category Not Evaluated
Down arrow Husbandry Information
Breeding Unreported in the aquarium.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Zootaxa 3619 (no. 2), pp 138, Figs. 3C-D, 6.
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Last Update 2019 Oct 26 07:51 (species record created: 2013 Feb 27 00:58)