Pareiorhaphis
Pareiorhaphis is a genus of catfish in the family Loricariidae native to South America. This genus can be readily distinguished from other neoplecostomines by the unique combination of having fleshy lobes on lateral margins of head ornamented with hypertrophied odontodes on nuptial males, caudal peduncle ovoid in cross section, abdomen usually naked, dorsal fin spinelet ovoid and adipose fin usually present. The color pattern is usually dark brown and mottled with the abdomen white. Most species in to Pareiorhaphis were originally described in Hemipsilichthys. In 1918, Alípio de Miranda-Ribeiro proposed the new genus Pareiorhaphis. Whether Pareiorhaphis is monophyletic or not is currently unknown.
Species
There are currently 25 recognized species in this genus: Pareiorhaphis azygolechis Pareiorhaphis bahianus Pareiorhaphis cameroni Pareiorhaphis cerosus Pareiorhaphis eurycephalus Pareiorhaphis garapia E. H. L. Pereira, Lehmann A., Schvambach & R. E. dos Reis, 2015 Pareiorhaphis garbei Pareiorhaphis hypselurus Pareiorhaphis hystrix Pareiorhaphis lophia E. H. L. Pereira & Zanata, 2014 Pareiorhaphis mutuca Pareiorhaphis nasuta E. H. L. Pereira, F. Vieira & R. E. dos Reis, 2007Pareiorhaphis nudulus Pareiorhaphis parmula E. H. L. Pereira, 2005Pareiorhaphis proskynita E. H. L. Pereira & M. R. Britto, 2012 Pareiorhaphis pumila E. H. L. Pereira and R. E. dos Reis. 2022Pareiorhaphis regani Pareiorhaphis ruschii E. H. L. Pereira, Lehmann A. & R. E. dos Reis, 2012 Pareiorhaphis scutula E. H. L. Pereira, F. Vieira & R. E. dos Reis, 2010Pareiorhaphis splendens Pareiorhaphis steindachneri Pareiorhaphis stephanus Pareiorhaphis stomias Pareiorhaphis togoroi Oliveira & Oyakawa, 2019 Pareiorhaphis vestigipinnis Pareiorhaphis vetula E. H. L. Pereira, Lehmann A. & R. E. dos Reis, 2016