Hypostomus agna[1] is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Ribeira de Iguape River basin. It was formally described as a new species in 1907 by Brazilian ichthyologist Alípio de Miranda-Ribeiro, as a species of Plecostomus.[2]
| Hypostomus agna | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Genus: | Hypostomus |
| Species: | H. agna
|
| Binomial name | |
| Hypostomus agna (Miranda-Ribeiro, 1907)
| |
| Synonyms | |
| |
The species reaches 22 cm (8.7 inches) in total length and is thought to be a facultative air-breather.[3] Its keels are absent or poorly developed. The caudal peduncle has a trapezoidal shape in cross-section. These two features are used to distinguish it between closely related species also present in the Ribeira de Iguape river basin.[2]
References edit
- ^ "ITIS - Report: Hypostomus agna". www.itis.gov. Retrieved 2022-08-21.
- ^ a b Oyakawa, Osvaldo T.; Akama, Alberto; Zanata, Angela M. (2005). "Review of the genus Hypostomus Lacépède, 1803 from rio Ribeira de Iguape basin, with description of a new species (Pisces, Siluriformes, Loricariidae)". Zootaxa. 921 (1): 1–27. doi:10.11646/zootaxa.921.1.1.
- ^ Froese, Rainer; Pauly, Daniel, eds. (2022). "Hypostomus agna". FishBase.