Eucyclogobius is a genus of fish in the family Gobiidae endemic to California in United States.
Species There are currently 2 recognized species in this genus: Eucyclogobius kristinae Swift, Spies, Ellingson & Jacobs, 2016 (Southern tide-water goby) Swift, C.C., Spies, B., Ellingson, R.A. & Jacobs, D.K. (2016): A New Species of the Bay Goby Genus Eucyclogobius, Endemic to Southern California: Evolution, Conservation, and Decline. PLoS ONE, 11 (7): e0158543. Eucyclogobius newberryi (Girard, 1856) (Northern tide-water goby)
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