Pseudohemiodon in Ecuador

[Silurus]

Provenzano-Rizzi, F, P Argüello & R Barriga-Salazar, 2022. The genus Pseudohemiodon (Siluriformes, Loricariidae) in Ecuador, with the description of a new species. Zootaxa 5129: 77–91.

Abstract

At the Fish Collection of the Museo de la Escuela Politecnica Nacional (MEPN), Quito, the specimens of the genus Pseudohemiodon were revised and three species were identified. The three species inhabit the Amazon versant of Ecuador. Chronologically the species are: P. lamina (Günther 1868) originally described from Xeberos (Jeberos), Peru; P. apithanos Isbrücker & Nijssen 1978, originally described from the Conejo River, Putumayo River system, Ecuador, and a new species described herein. The new species was caught in the Aguarico River, Napo River system, and is represented by two small sized specimens. It is distinguished from all congeners by the combination of the following characters: abdomen totally covered with small to medium-sized, irregularly shaped plates; absence of small plates, anterior to gill openings; eyes relatively small, and six to seven dark transverse bands, posterior to the dorsal-fin. Isbrücker & Nijssen (1978) indicate the presence of P. laticeps (Regan 1904) in Ecuador; however we didn’t find any specimen of this species. The specimens that could potentially be identified as P. laticeps are large sized specimens of P. apithanos. Some external morphological characters, morphometric and meristic data of analyzed specimens of P. apithanos and P. lamina are provided.

[bekateen]

Pseudohemiodon almendarizi. And can we tell if this is one of the undescribed Pseudohemiodon in the hobby?

Thanks.

Cheers, Eric

[Acanthicus]

Hi,

it looks very much like what we used to call sp. "Tigre" or "Tiger" so far, the mentioned distribution also matches this species.

It is not common in the hobby, but now and then there are exports.

[bekateen]

Hi,

it looks very much like what we used to call sp. "Tigre" or "Tiger" so far, the mentioned distribution also matches this species.

It is not common in the hobby, but now and then there are exports.

We have two Pseudohemiodon sp. `Peru`, both which are similar. I think the new species is our Pseudohemiodon sp`peru_ii`, not Pseudohemiodon sp`peru_i` (unless they are color variants of each other). Can someone confirm?

Thanks, Eric

[Acanthicus]

Hi,

both are the same species and it is almendarizi.

[bekateen]

Okay thanks Daniel!

Cheers,
Eric