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Hudson Crizanto Gonçalves (3)

Abstract: A new armored catfish species of the genus Pareiorhaphis is described from the middle and upper portions of rio Paraguaçu basin, coastal drainage of Bahia State, northeastern Brazil. The new species is readily distinguished from all its congeners by having two putative autapomorphies: (1) skin fold just posterior to each emergent tooth series of dentary formed by a single enlarged, flattened papilla, and (2) the midline of lower lip immediately behind the dentaries with small patch of distinct papillae arranged in a short median bump. In addition, the shallow caudal peduncle and comparatively lower number of teeth in each dentary also distinguishes the new species from all congeners. The new species is also compared to Pareiorhaphis bahianus, the geographically closest congener. Habitat: This species was found in blackwater coastal river and collected from the shallow rocky platforms and inside crevices at night. In other sampling areas, this was observed hidden among pebbles on the shallow rapids and also on narrow stretches around 50 cm deep, just below a waterfall, with fast water current and rocky bottom. Syntopic with Hypostomus chrysostiktos and H. jaguar. Aquarium Care: Will need a good water flow in the aquarium as found under rocks in fast flowing waters. Etymology: The specific name lophia is from the Greek, meaning crest, ridge. In allusion to the presence of distinct bump on the lower lip, a diagnostic feature of the new species. A noun in apposition.

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Loricariidae

South America: Rio Paraguaçu basin in Brazil.

8.0cm. (3¼ins)

22-26°c (71-77°f)

6.0-7.5.

Froese, R. and D. Pauly. Editors. 2022. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 02/2022 )
Pereira, Edson H. L. and Zanata, Angela M. A new species of the armored catfish genus Pareiorhaphis Miranda Ribeiro (Siluriformes: Loricariidae) from the rio Paraguaçu, Bahia State, northeastern Brazil. Neotropical Ichthyology.