Description of a new species of Gymnotocinclus from the rio Tocantins basin with phylogenetic analysis of the subfamily Hypoptopomatinae

Description of a new species of Gymnotocinclus from the rio Tocantins basin with phylogenetic analysis of the subfamily Hypoptopomatinae (Siluriformes: Loricariidae)
Fábio F. Roxo, Gabriel S. C. Silva, Luz Eneida Ochoa & Cláudio H. Zawadzki

Abstract
Gymnotocinclus canoeiro n. sp. of the Hypoptopomatinae is described from small tributaries of the upper rio Tocantins basin. It is distinguished from G. anosteos by having five characters:
(1) the presence of body dermal plates,
(2) the pectoral girdle not exposed in ventral view,
(3) the pelvic spine longer than pectoral spine in males,
(4) the pectoral fin with seven to eight branched rays, and
(5) the presence of an Link.

Gruß,
Karsten

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