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Hudson Crizanto Gonçalves (3)

Abstract: A new species of Parotocinclus from the upper Rio Paraguaçu, Bahia, Brazil, is described. The new species is distinguished from all congeners by its unique colour pattern, with irregular dark blotches resulting in a somewhat marble-spotted pattern on head and trunk of most specimens and dorsum of head with a conspicuous V-shaped light mark from tip of snout to nares. The new species is also distinguished from congeners by having the lower lip elongated posteriorly and reaching or surpassing the anterior margin of cleithrum on the pectoral girdle, the canal cheek plate on the ventral surface of the head reduced and with a slightly concave margin, and abdomen covered by small embedded platelets, without contact with each other and not arranged in a line between the pectoral-fin axilla and pelvic-fin origin. The presence of a thick and rough skin in the interradial membrane of pelvic fin exclusively in the females of P. nandae is reported by the first time to occurs in Siluriformes. Aquarium Care: This is a dwarf species which can be problematic to keep as it will need to be kept by their own or at least with other dwarf species as they will find it difficult to compete for food in the hurly burly of a community tank. Diet: Artemia naupli and vegetable matter. Etymology: The specific name nandae honours Maria Fernanda Boaz Lehmann, daughter of the first author of this paper and affectionately known as “Nanda”. A noun in genitive.

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Loricariidae

South America: Parotocinclus nandae is known from two localities in the upper portion of the Rio Paraguaçu basin, Chapada Diamantina domain, Bahia State, Brazil.

4.0cm. (1¾ins)

26-29°c (79-85°f)

6.0-7.5.

Lehmann A. P, Camelier P, Zanata A (2020) Parotocinclus nandae, a new distinctive colored catfish (Loricariidae: Hypoptopomatinae) from the upper Rio Paraguaçu, Bahia State, northeastern Brazil. PLoS ONE 15(7): e0236690.