Myxodagnus opercularis Gill, 1861 .

Dart Stargazer. To 9.1 cm (3.6 in) TL (Robertson and Allen 2002). Central Baja California, Gulf of California, and Islas Revillagigedo (Robertson and Allen 2015). Benthic; depth: intertidal to 18 m (59 ft) (min.: Dawson 1976; max.: Robertson and Allen 2015).