Hisonotus hungy sp. n. (Siluriformes, Loricariidae) a new species from arroyo Tirica, Misiones, Argentina

Abstract

Hisonotus hungy sp. n. is described from the arroyo Tirica, río Paraná basin in Misiones province, Argentina. Hisonotus hungy sp. n. is diagnosed by the following combination of characters: 20-22 lateral plates, 5 branched anal-fin rays, absence of pad on snout tip, blunt and deep snout, snout 45.5-50.9 (% in HL), eye 13.4-17.1 (% in HL), predorsal unpaired plates absent; vent completely covered by two rows of large lateral platelets and one median series with irregular plates.