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Erlend D. Bertelsen (1) Hudson Crizanto Gonçalves (2) Oliver Lucanus (1)

The Hypostomus genus has 7 soft rays to the dorsal fin whereas the similar looking Pterygoplichthys species have 10 soft dorsal fin rays. A re-evaluation of the armoured catfish species of Hypostomus in the Rio Jaguaribe, north-eastern Brazil, was prompted by the discovery of specimens with pale spots on a dark background collected from that basin c. 1936 and deposited at the Academy of Natural Sciences of Philadelphia. Recent field collections in the Rio Jarguaribe basin confirmed the presence of the pale-spotted specimens and its distinctiveness as a new species. Description: Hypostomus sertanejo is diagnosed from other species of Hypostomus by having fins and dermal-plated regions of head and body with pale spots or vermiculations on darker background, teeth slender, asymmetrically bicuspid and numerous (34-75) on dentary and premaxilla, depressed dorsal-fin spine not reaching adipose spine, unbranched pectoral-fin spine longer than unbranched pelvic-fin ray, seven branched dorsal-fin rays and one (rarely two) predorsal plate(s) bordering supraoccipital (Zawadzki et.al.). Aquarium Care: As with most of this genus, will do well in a larger aquarium, and the aquarium well filtered. Water parameters can be quite diverse for this genera. Diet: Omnivore with a liking for green, tablet and frozen foods. Remarks: As of 2020 this species is still not listed on many online resources.

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Loricariidae

South America: Rio Jaguaribe and Rio Choró basins, Ceará, Brazil. Type Locality: Rio Umbuzeiro at outlet below São Nicolau dam, municipality of São Nicolau, Ceará State, Brazil, 6°40'48.8"S, 40°04'49.1"W.

20.0cm. (8ins)

20-24°c (67-75°f.)

6.5-7.2.

Zawadzki, C. H., T. P. A. Ramos and M. H. Sabaj Pérez 2017 (7 June) Hypostomus sertanejo (Siluriformes: Loricariidae), new armoured catfish species from north-eastern Brazil. Journal of Fish Biology v. 91 (no. 1): [1-14] 317-330.