New Rhadinoloricaria

[Silurus]

Provenzano-Rizzi, F, LC Chaves-Moreno, BM Ordoñez & A Ortega-Lara, 2024. A new species of Rhadinoloricaria (Siluriformes: Loricariinae) from Colombia. Zootaxa 5474: 127–138.

Abstract

During 2009, photos of three specimens in poor conditions from the Caquetá River system in Colombia generated suspicions about the existence of a new species of

Rhadinoloricaria

. In 2022, additional specimens were obtained from the same aquatic system allowing confirm the new species presence. The new species has a projected, spatula-shaped snout, and a pattern of buccal ornamentation similar to that observed in R. macromystax (Günther 1869) and R. stewarti Provenzano & Barriga 2020. The new species is distinguished from similar Rhadinoloricaria by the pattern of plates covering the abdomen and some morphometric proportions. When comparative analyses were performed among these three species, paratype lot of R. stewarti MEPN-I 14710 with three specimens was found to be identical to the new species herein described; therefore this paratype is re-identified. The presence of the new species of Rhadinoloricaria in Colombia expands the northern limit of its geographical distribution.

[bekateen]

Rhadinoloricaria andaki

.

Surprisingly, when I look in our CLOG database, I see no entry for this fish as it's been sold in the trade as Rhadinoloricaria sp`caqueta` (there's only one forum post HERE looking for info too). But we do have a CLOG entry for a Rio Caqueta fish named

Rhadinoloricaria aff_condei

, with only one keeper, @N_F_S; do we know if this is the same thing? Instead of creating a new CLOG entry for R. andaki, I'm inclined to rename the R. aff_condei profile as R. andaki, given that the distribution of this new species doesn't seem to overlap with any others that we know of.


Also noteworthy in this paper, these authors state that only

Rhadinoloricaria macromystax

and

Rhadinoloricaria stewarti

remain in the genus with this new species. The authors rename

Rhadinoloricaria condei

and

Rhadinoloricaria laani

to

Apistoloricaria

, and they state that the other species (

Rhadinoloricaria bahuaja

,

Rhadinoloricaria listrorhinos

,

Rhadinoloricaria rhami

and

Rhadinoloricaria ommation

) need additional studies because they might warrant moving to a different genus (for now though, staying in Rhadinoloricaria).

Cheers, Eric