* Gobulus hancocki Ginsburg, 1938. Sand-top Goby. To 4 cm (1.6 in) (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California). Tip of Baja California, and Gulf of California to Colombia (Robertson and Allen 2008). Benthic; depth: intertidal to 20 m (66 ft) (min.: Castellanos-Galindo et al. 2014; max.: Robertson and Allen 2008).