Pareiorhina hyptiorhachisis a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armoured catfishes, and the subfamily Hypoptopomatinae, the cascudinhos. This catfish is endemic to Brazil.
| Pareiorhina hyptiorhachis | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Genus: | Pareiorhina |
| Species: | P. hyptiorhachis |
| Binomial name | |
| Pareiorhina hyptiorhachis | |
Taxonomy
editPareiorhina hyptiorhachis was first formally described in 2013 by the Brazilian ichthyologists Gabriel de Souza da Costa e Silva, Fábio Fernandes Roxo and Cluadio de Oliveira with its type locality given as the Fernandes Stream, a tributary of the Pomba River, part of the Paraíba do Sul basin at 21°14'47"S, 43°34'07"W in Santa Bárbara do Tugúrioin the Brazilian state of Minas Gerais.[2] Eschmeyer's Catalog of Fishes classifies the genus Pareiorhina in the subfamily Hypoptopomatinae, the cascudinhos, within the suckermouth armored catfish family Loricariidae.[3]
Etymology
editPareiorhina hyptiorhachis is classified within the genus ''Pareiorhina, this name combines pareiá, meaning "cheek", with rhina, from rhínē, which means "file" or "rasp", this is probably an allusion to the rough sides of the head. The specific name, hyptiorhachis, is a combination of hýptios, meaning "supine", with rháchis, which means "ridge" or "midrib", an allusion to the conspicuous postdorsal ridge.[4]
Description
editPareiorhina hyptiorhachis has 9 soft rays in the dorsal fin and 6 in the anal fin and it reaches a standard length of 3.9 cm (1.5 in). This species can be told apart from all other species in its genus by its higher post dorsal ridge.[5]
Distribution and habitat
editPareiorhina hyptiorhachis is endemic to Brazil, where it is know only from the Pomba River and one of its tributaries, the Fernandes stream, in Santa Bárbara do Tugúrio in Minas Gerais.[1] It is typically found in small streams with moderate to fast flow, margins covered in aquatic vegetation, and a substrate composed of rocks and sand. It is known to occur alongside the species Geophagus brasiliensis and Neoplecostomus microps, as well as members of the genera Astyanax, Characidium, Harttia, Imparfinis, and Trichomycterus.[5]
References
edit- 1 2 Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) (2022). "Pareiorhina hyptiorhachis". IUCN Red List of Threatened Species (in Brazilian Portuguese). 2022 e.T140618438A140618442. doi:10.2305/IUCN.UK.2022-1.RLTS.T140618438A140618442.pt. Retrieved 26 May 2023.
- 1 2 Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Pareiorhina". Catalog of Fishes. California Academy of Sciences. Retrieved 10 May 2026.
- ↑ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Hypoptopomatinae". Catalog of Fishes. California Academy of Sciences. Retrieved 10 May 2026.
- ↑ Christopher Scharpf (28 February 2026). "Family LORICARIIDAE: Subfamily HYPOPTOPOMATINAE Eigenmann & Eigenmann 1890 (Cascudinhos)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 10 May 2026.
- 1 2 Froese, Rainer; Pauly, Daniel (eds.). "Pareiorhina hyptiorhachis". FishBase. February 2026 version.