There are 29 endemic species in California-Gulf of California (zone 25)
Acartia (Acanthacartia) bacorehuiensis Zamora-Sanchez & Gomez-Aguirre, 1985 (F,M)(presence in 1 zones) Aetideus truncatus Bradford, 1971 (F,M)(presence in 1 zones) Augaptilus lamellifer Esterly, 1911 (F)(presence in 1 zones) Bathycalanus pustulosus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017 (F)(presence in 1 zones) Caribeopsyllus amphiodiae Ho, Dojiri, Hendler & Deets, 2003 (F,M)(presence in 1 zones) Centraugaptilus lucidus (Esterly, 1911) (M)(presence in 1 zones) Centraugaptilus macrodus (Esterly, 1911) (F)(presence in 1 zones) Cymbasoma californiense Suarez-Morales & Palomares-Garcia, 1999 (F)(presence in 1 zones) Labidocera diandra Fleminger, 1967 (F,M)(presence in 1 zones) Labidocera jollae Esterly, 1906 (F,M)(presence in 1 zones) Labidocera kolpos Fleminger, 1967 (F,M)(presence in 1 zones) Laitmatobius crinitus Humes, 1987 (M)(presence in 1 zones) Metridia sp. Esterly, 1906 (F,M)(presence in 1 zones) Misophriopsis longicauda Humes, 1999 (F,M)(presence in 1 zones) Monstrilla capitellicola Hartman, 1961 (F)(presence in 1 zones) Monstrilla gibbosa Suarez-Morales & Palomares-Garcia, 1995 (F)(presence in 1 zones) Paraeuchaeta copleyae Park, 1995 (F,M)(presence in 1 zones) Paraeuchaeta plaxiphora Park, 1995 (F)(presence in 1 zones) Paraeuchaeta triloba Park, 1995 (F)(presence in 1 zones) Parastephos esterlyi Fleminger, 1988 (F,M)(presence in 1 zones) Phaenna latus (Esterly, 1911) (F)(presence in 1 zones) Pontellopsis occidentalis Esterly, 1906 (F,M)(presence in 1 zones) Pseudocyclops bilobatus Dawson, 1977 (F,M)(presence in 1 zones) Pseudodiaptomus euryhalinus Johnson, 1939 (F,M)(presence in 1 zones) Scaphocalanus californicus Davis, 1949 (F)(presence in 1 zones) Scolecithrix aculeata Esterly, 1913 (F)(presence in 1 zones) Scolecithrix elephas Esterly, 1913 (F)(presence in 1 zones) Scolecithrix obscura Esterly, 1913 (F)(presence in 1 zones) Xanthocalanus similis Esterly, 1906 (F)(presence in 1 zones)
