Catfish

Distinguished from M. parahybae and M. cibelae by the longer head (29.3-33.8% SL, versus 23.2-27.6 and 25.6-31.1 respectively) and wide body (28.5-33.9% SL versus 23.8-27.7 and 25.4-29.8, respectively). The smaller mouth width distinguish this species from M. eurystoma (50.6-64.3% HL, versus 67.3-84.4).

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Analsoft rays: 9 - 12; Vertebrae: 30

Reported to reach approximately 9 cm SL (Ref. 81048).