Species: Gobiosoma longipala, Twoscale goby

Gobiosoma longipala Ginsburg, 1933

Twoscale goby

Body robust, head rounded, wider than deep; 1 pore between eyes; very small barbel before eye on inner edge of upper lip; 2 pores over opercle; preopercle with 3 pores; anterior nostril - short tube; posterior - raised rim; mouth nearly terminal; upper lip separated from snout by a groove along its top edge; no teeth on roof of mouth; outer row of teeth enlarged in both jaws; tongue entire; end of maxilla on vertical about through rear margin of eye; teeth with 3-4 rows, outer enlarged in upper, lower with outer and inner enlarged; gill membranes broadly joined to body under throat, with 5 rays; dorsal fin VII (rarely VI or VIII), not filamentous + I, 11 (9-12); length of 2nd dorsal base > distance from 2nd dorsal base to tail fin; anal fin I, 9 (8-10); pectoral fins 17 (15-18); pelvic fins I, 5, fin long, reaching to anus, oval, disk complete; tail fin with 17 branched rays, oval; body without scales except for 2 small very rough scales on the tail fin base; no lateral line.