Pareiorhaphis vestigipinnis 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.
| Pareiorhaphis vestigipinnis | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Genus: | Pareiorhaphis |
| Species: | P. vestigipinnis |
| Binomial name | |
| Pareiorhaphis vestigipinnis | |
| Synonyms[2] | |
| |
Taxonomy
editPareiorhaphis vestigipinnis was first formally described as Hemipsilichthys vestigipinnis in 2002 by the Brazilian ichthyologists Edson H. L. Pereira and Roberto Esser dos Reis with its type locality given as a creek tributary of the Caveiras River at Painel, at around 27°55'S, 50°05'W, Lages in the Brazilian state of 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
editPareiorhaphis vestigipinnis 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, vestigipinnis, combines the Latib vestigium, which means "vestige", with pinna, meaning fin, and allausion to the small, or vestigial, plates ate the position of the adipose fin.[5]
Description
editPareiorhaphis vestigipinnis has a single spine and 7 soft rays in its dorsal fin and 6 soft rays in its anal fin. This species can be identified by the absence of the adipose fin, havinga cleithrum with a width equivalent to between 27.3% and 37.7% of the standard length, the dermal plates on the back are normally developed. In breeding males there are a small number hypertrophied odontodes on the sides of the head, these are rather delicate and are typically concealed by large, soft, fleshy lobes. Thsi species has an elongate body shape and it reaches a standard length of 9.8 cm (3.9 in).[6]
Distribution
editPareiorhaphis vestigipinnis is endemic to Brazil, where it occurs in the headwaters of the Canoas River in the Uruguay River basin in Santa Catarina.[1]
Conservation status
editPareiorhaphis vestigipinnis is currently known from only two localities, and there is very little data about the distribution, ecology or threats to enable the International Union for Conservation of Nature to assess the risk of extinction for this species, it is, therefore, classified as Data Deficient.[1]
References
edit- 1 2 3 Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) (2022). "Pareiorhaphis vestigipinnis". IUCN Red List of Threatened Species (in Brazilian Portuguese). 2022 e.T187264A1825579. doi:10.2305/IUCN.UK.2022-1.RLTS.T187264A1825579.pt. Retrieved 5 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 5 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 5 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 5 May 2026.
- ↑ Froese, Rainer; Pauly, Daniel (eds.). "Pareiorhaphis vestigipinnis". FishBase. February 2026 version.