Hyaloglanis
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| Hyaloglanis | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Trichomycteridae |
| Subfamily: | Glanapteryginae |
| Genus: | Hyaloglanis de Pinna, V. J. C. Reis & DoNascimiento, 2025, 2025[1] |
| Type species | |
| Ammoglanis pulex de Pinna & Winemiller, 2000 | |
| Species | |
|
4, see text. | |
Hyaloglanis is a genus of freshwater ray-finned fishes belonging to the family Trichomycteridae and the subfamily Glanapteryginae, the miniature pencil catfishes. These fishes are found in South America.
The phylogenetic position of H. pulex is problematic. It seems to be closely related to Ammoglanis diaphanus due to some derived characters of the internal anatomy, but a conclusive assessment of its relationships has been prevented by its paedomorphic features and scarcity of study material. This generic placement seems to be well supported.[2]
Species
There are currently four recognized species in this genus:[3]
- Hyaloglanis natgeorum Henschel, Lujan & Baskin, 2020[4]
- Hyaloglanis nheengatu (Canto, Hercos & Ribeiro, 2022)
- Hyaloglanis obliquus Henschel, Bragança, Rangel-Pereira & W. J. E. M. Costa, 2020[5]
- Hyaloglanis pulex (de Pinna & Winemiller, 2000)
Distribution
H. pulex originates from the Paria Grande River, the Pamoni River, and Caño Garrapata of Venezuela.[6] H. obliquus is only known from the Rio Preta da Eva drainage basin.[5]