Microgobius brevispinis Ginsburg, 1939 .

Balboa Goby or Shortspine Goby. To 8.2 cm (3.2 in) TL (Robertson and Allen 2002). Southern Baja California (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California) to Panama (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California), including Gulf of California (Robertson and Allen 2002). Benthic; marine and brackish waters (Fricke et al. 2020); depth: 0–6 m (20 ft) (Robertson and Allen 2002).