Eucyclogobius newberryi (Girard, 1856) .

Northern Tidewater Goby. To 5.7 cm (2.3 in) TL (Eschmeyer and Herald 1983). Tillas Slough, mouth of Smith River, northern California (Moyle 2002) to Santa Monica Artesian Springs, southern California (Swift et al. 2016). Benthic; coastal lagoons and brackish bays at mouths of freshwater streams (Eschmeyer and Herald 1983); occasionally marine, mostly brackish and fresh waters (Moyle 2002); depth: to 15 m (49 ft) (Greg Goldsmith, pers. comm. to M.L.).