pomo, Hysterocarpus traskii Hopkirk [J. D.] 1974:87, Fig. 16 [University of California Publications in Zoology v. 96 (for 1973); ref. 2199] Russian River near Ukiah, Mendocino County, California, U.S.A. Holotype: CAS 22783. Paratypes: CAS 22784 (7). Additional material: CAS 21011 (2), 21092-93 (1, 1), 22786 (28); CAS-SU 37744 (35). Appeared first (and unavailable) in Hopkirk 1968:414 [ref. 2198] without distinguishing features. •Synonym of Hysterocarpus traskii Gibbons 1854, but status as a subspecies uncertain. •Synonym of Hysterocarpus traskii Gibbons 1854, but a valid subspecies -- (Moyle 2002:424 [ref. 26449], Scharpf 2009:11 [ref. 30400], Page & Burr 2011:614 [ref. 31215]). Current status: Synonym of Hysterocarpus traskii Gibbons 1854. Embiotocidae. Distribution: Russian River, California [subspecies pomo]. Habitat: freshwater, brackish.