Microspathodon bairdii (Gill, 1862). Bumphead Damselfish or Sheephead Mickey. To 31 cm (12.1 in) TL (Grove and Lavenberg 1997). Los Cerritos (23°20’N), southern Baja California (Ruiz-Campos 2010b) to Ecuador (Thomson et al. 2000), including Gulf of California (Schneider and Krupp in Fischer et al. 1995), Islas Galápagos (Grove and Lavenberg 1997), and many other offshore islands (Robertson and Allen 2002). Depth: intertidal to 20 m (66 ft) (min.: Castellanos-Galindo et al. 2005; max.: Personal communication: Los Angeles County Museum of Natural History Fish Collection, Los Angeles, California).