Diagnostic Description
provided by Fishbase
Can be diagnosed from all its known congeners, except Oligosarcus jenynsii, Oligosarcus perdido, Oligosarcus acutirostris, Oligosarcus solitariusand Oligosarcus hepsetus, by the number of perforated lateral line scales (55-65). Shares with the first two species the absence of a premaxillary foramen, present in the last three species and differs from Oligosarcus jenynsii by having a smaller orbital diameter and the tip of the pectoral fin failing to reach the pelvic-fin origin, and from Oligosarcus perdido by the presence of more horizontal scale rows around the caudal peduncle.Description: Dorsal-fin rays ii,9; anal-fin rays iv-v,22-28; pectoral-fin rays i, 13-16; pelvic-fin rays i, 7 (Ref. 85166).
Morphology
provided by Fishbase
Dorsal soft rays (total): 11
