Gatunek typowy

Opis

Long head with short posterior part of neurocranium; maxilla forms the greater part of upper jaw; mandible shallow; jaws with small, uniform teeth arranged in single rows; opercular bones thin with smooth margins; preoperculum and interoperculum large; operculum long, shallow and triangular; ceratohyal imperforate with narrow midportion; pelvics inserted slightly behind midpoint of body; dorsal and anal fins, posteriorly placed, subequal and opposite; about 41 vertebrae, 20 caudal; majority of head bones, cleithrum and vertebral centra of adult forms with numerous low ridges and furrows; scales absent; pectoral and caudal fin without produced ray. 

Synonimy

Zasięg czasowy

Literatura