Gobiosoma nudum (Meek & Hidebrand, 1928) .

Knobchin Goby. To 4.5 cm (1.8 in) TL (Allen and Robertson 1994). Introduced to Atlantic; Punta Marquis, southern Baja California to Cabo Pulmo, Gulf of California and from Mazatlán to Colombia (Thomson et al. 1979). Benthic; marine and brackish waters (Fricke et al. 2020); depth: intertidal to 10 m (33 ft) (min.: Allen and Robertson 1994; max.: Robertson and Allen 2002).