Description of a new species of Parotocinclus (Siluriformes, Hypoptopomatinae) from the rio Tapajós basin

Collection: Pensoft Publishers

Keywords: Biodiversity · Topics: Fish biology, ecology, and behavior, Fish Biology and Ecology Studies, Fish Ecology and Management Studies

A new species of Parotocinclus is described from three small tributaries of the rio Tapajós basin, Mato Grosso State, Brazil. The new species can be distinguished from its congeners by presenting the following characters: (1) a triangular dark blotch at the anterior base of the dorsal fin, (2) the absence of an adipose fin but presence of one small platelet at typical adipose-fin region, (3) the abdomen completely covered by dermal plates, (4) a pectoral girdle totally exposed, (5) a single series of bicuspid teeth, and (6) the higher number of bicuspid premaxillary and dentary teeth.

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