TABLE I. Known distribution of the 19 species of west North American Chromodoridinae, from Monterey Bay, California, USA, to the Islas Galápagos, Ecuador. Main data sources are Behrens & Heremosillo, 2005; Camacho-García, Gosliner & Valdés, 2005; and Hermosillo, Behrens & Ríos Jara, 2006. More precise localities are from primary sources such as Bertsch, 1988; Kerstitch & Bertsch, 1988; Bertsch, 2008; Nakamura, 2006; and my personal observations. For occurrences in marine faunal provinces, see Bertsch, 2010.

            Note that Mexichromis is the only currently recognized chromodoridine genus whose type species (Chromodoris antonii) has a type locality from the Gulf of California (indeed from all of west North America).


Chromodoris baumanni Bertsch, 1970

Puerto Peñasco, Sonora, northern Gulf of California, to Islas Galápagos; also south to Cancas, Tumbes, Perú

Chromodoris galexorum Bertsch, 1978

Gulf of California Midriff region; Isla Guadalupe, Pacific coast of Baja California (BC); and Catalina Island, California (CA)

Chromodoris macfarlandi Cockerell, 1901

            Monterey Bay, CA, to Bahía Magdalena, Baja California Sur (BCS)

Chromodoris marislae Bertsch, in Bertsch, Ferreira, Farmer & Hayes, 1973

            Bahía de los Ángeles, BC, Gulf of California Midriff region, to Panamá

Chromodoris norrisi Farmer, 1963

Isla Cedros, Pacific coast of BC; Puerto Peñasco, northern Gulf of California, to Costa Rica

Chromodoris ruzafai Ortea, Bacallado & Valdés, 1992

            Islas Galápagos (only record)

Chromodoris socorroensis Behrens, Gosliner & Hermosillo, 2009

            Islas Revillagigedo (only record)

Chromodoris sphoni (Marcus, 1971)

            La Paz, southern Gulf of California, to Islas Galápagos

Glossodoris dalli (Bergh, 1879)

Islas San Benito, Pacific coast of BC; Puerto Peñasco, northern Gulf of California, to Islas Galápagos

Glossodoris sedna (Marcus & Marcus, 1967)

Puerto Peñasco and Guaymas, Sonora, northern and Midriff region Gulf of California; La Paz, BCS, southern Gulf of California, to Islas Galápagos

Hypselodoris agassizii (Bergh, 1894)

Puerto Peñasco and Puerto Libertad, Sonora (rarely), northern Gulf of California; La Paz, BCS, southern Gulf of California, to Islas Galápagos, and south to Cancas, Peru

Hypselodoris californiensis (Bergh, 1879)

            Monterey Bay, CA, to La Paz, BCS; also at Bahía de los Ángeles

Hypselodoris ghiselini Bertsch, 1978

            Through entire Gulf of California, from Puerto Peñasco to La Paz (a Gulf endemic)

Hypselodoris lapislazuli (Bertsch & Ferreira, 1974)

            Islas Galápagos (only record)

Mexichromis amalguae Gosliner & Bertsch, 1988

            Islas Cedros and San Benito, Pacific coast of BC

Mexichromis antonii (Bertsch, 1976)

            Mulege and La Paz, central and southern Gulf of California, to Panamá

Mexichromis porterae (Cockerell, 1901)

            Monterey Bay, CA, to Bahía Tortugas, BCS

Mexichromis tica Gosliner, Ortea & Valdés, 2004

            Costa Rica and Islas Galápagos

Mexichromis tura (Marcus & Marcus, 1967)

From San Carlos, Sonora, and Bahía de los Ángeles, BC, Midriff region Gulf of California, to Panamá



(By: Hans Bertsch, October 2011)