Common names: goby (English), gobio (Espanol)
Gobiosoma homochroma (Ginsburg, 1939)
Body robust; head rounded; snout blunt; mouth oblique; tongue round to blunt; a small barbel below each front nostril; front nostril tubular, rear with raised rim; dorsal fin VII (none filamentous) + I, 11 (10-12) rays; anal I, 10 rays; pectoral rays 19-20; pelvics fused in disc; male genital papilla slender; female genital papilla with rounded tip; body completely scaled behind level of 2nd ray of 2nd dorsal, with narrowing extension forwards to inner base of pectoral; scales large, rough; 6 large, rough (but not with long spines); scales on base of tail fin; 27 lateral scales; head scaleless.
Pale grey-brown; front half speckled with dark dots; may have faint bars on top of back.
Size: 3.2 cm.
Habitat: fresh and brackish water?
Depth: 0-5 m.
Pacific entrance to Panama Canal.