Pareiorhaphis steindachneri
| Pareiorhaphis steindachneri | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Genus: | Pareiorhaphis |
| Species: | P. steindachneri |
| Binomial name | |
| Pareiorhaphis steindachneri (A. Miranda-Ribeiro, 1918)[2] | |
| Synonyms[2] | |
| |
Pareiorhaphis steindachneri is 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.
Taxonomy
Pareiorhaphis steindachneri was first formally described as Hemipsilichthys steindachneri in 1918 by the Brazilian zoologist Alípio de Miranda-Ribeiro with its type locality given as the Itapocu River in Santa Catarina.[2] After this species was described it was found that Hemipsilichthys sensu stricto, with three species, were basal loricarids, and the other species were nested within the loricarid diversity and the genus Pareiorhaphis was resurrected from its synonymy with Hemipsilichthys for all but those three species.[3] Eschmeyer's Catalog of Fishes classifies the genus Pareiorhaphus in the subfamily Hypoptopomatinae, the cascudinhos, within the suckermouth armored catfish family Loricariidae.[4]
Etymology
Pareiorhaphis steindachneri is a species in the genus Pareiorhaphis, the name of which is a combination pareio, derived from pareiá, which means "cheek" in Greek, and rhaphis, meaning "needle". This is a reference to the needle like hypertrophied odontodes on the cheeks of the males when they are in breeding condition. The specific name honours the Austrian ichthyologist Fran Steindachner who reorted this species in 1910, although he identified is as who reported this species as Hemipsilichthys calmoni.[5]
Description
Pareiorhaphis steindachneri has a single spine and 7 soft rays in its dorsal fin and 6 soft rays in the anal fin. There are 1 or 2 unpaired plates to the front of the adipose fin. The hypertrophied odontodes in the head margins are longer than the mandibular ramus nut they are shorter than the length of the snout in fully mature males. They have an adipose finand the spine in the pectoral fin is curved and short, it does not extrend past half of the pelvic fin when flattened against the body. This catfish has an elongated body and reaches a standard length of 14.3 cm (5.6 in).[6]
Distribution and habitat
Pareiorhaphis hystrix is endemic to Brazil where it is found in the Cubatão, Itapocu, and Itajaí-Açu in Santa Catarina, as well as the Marumbi River, in Paraná. This species requires fast-flowing, well-oxygenated, and cold waters, with a rocky streambed, flowing in areas with natural vegetation cover.[1]
References
- 1 2 Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) (2022). "Pareiorhaphis steindachneri". IUCN Red List of Threatened Species (in Brazilian Portuguese). 2022 e.T186766A1818059. doi:10.2305/IUCN.UK.2022-1.RLTS.T186766A1818059.pt. Retrieved 4 May 2026.
- 1 2 3 Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Pareiorhaphis". Catalog of Fishes. California Academy of Sciences. Retrieved 4 May 2026.
- ↑ Pereira, E.H.L. (2005). "Resurrection of Pareiorhaphis Miranda Ribeiro, 1918 (Teleostei: Siluriformes: Loricariidae), and description of a new species from the rio Iguaçu basin, Brazil". Neotropical Ichthyology. 3 (2): 271–276. doi:10.1590/S1679-62252005000200004.
- ↑ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Hypoptopomatinae". Catalog of Fishes. California Academy of Sciences. Retrieved 4 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 4 May 2026.
- ↑ Froese, Rainer; Pauly, Daniel (eds.). "Pareiorhaphis steindachneri". FishBase. February 2026 version.