A new species of Heptapterus Bleeker 1858 (Siluriformes, Heptapteridae) from the Uruguay River Basin in Misiones, Northeastern Argentina

AGUILERA, GASTÓN; BENITEZ, MAURICIO; TERÁN, GUILLERMO ENRIQUE; ALONSO, FELIPE; MIRANDE, J. MARCOS

ZOOTAXA

MAGNOLIA PRESS

Lugar: Auckland; Año: 2017 vol. 4299 p. 572 - 580

1175-5326

In this paper we describe Heptapterus mandimbusu sp. n., a new species of heptapterid catfish from a small tributary of the Uruguay River Basin in Misiones-Argentina. This new species is distinguished from all other congeners by the unique coloration pattern with aggregated melanophores scattered on dorsal and lateral surface of body, forming conspicuoussize-variable blotches, and the combination of a long interdorsal distance (13.8?18.9 % SL), 14?18 anal-fin rays, short maxillary barbels (52.2?74.5 % HL), and the adipose fin confluent with caudal fin.