Corydoras longipinnis Knaack 2007

Material examined. 2 exemplars; 40.0 mm - 48.7 mm SL. Cl FML 7925, 2 ex, 27°12’ 36.21”S; 65°37’ 22.80”W Pueblo Viejo River.

Identification. Body completely covered with 2 longitudinal rows of plates on the flanks; number of plates in the upper row of the dorsal base 20-21; number of plates in the lower row of the ventral base 18-20; short barbels that do not reach the base of the pectoral fins; short snout 43.5-52.6 % in head length (HL); dorsal and pectoral fin elongated in males; anterior region of the dorsal fin with black spots or bars (Knaack, 2007; Tencatt et al., 2016).