Eel-like, moderate to shallow body depth; maxilla adnate or nearly so; cardiform teeth present; branchiostegal membranes partly or completely united; swim bladder with thin terminal membrane or bulb; lacking enlarged dentary or premaxillary fangs, dentary diastema, pelvic fins, and swim bladder rocker bone (Ref. 34024). Swim bladder long, tubular, extending well beyond 12th vertebra (Ref. 34024).

Description: Characterized by translucent coloring; often with numerous small dark spots; usually blackish posterior portion of tail; length of pectoral fin 2.5-3.2 in head length; long and slender body, depth about 20 in TL; very low dorsal and anal rays; anal rays anterior to origin of dorsal fin; head length about 8.5-10.5 in TL; immobile maxilla, bound by skin to side of head; single row of jaw teeth , well spaced, upper jaw teeth hooked posteriorly; 2-3 enlarged teeth in vomer; palatines with single row of teeth (Ref. 90102).