dilatus, Spirinchus Schultz [L. P.] & Chapman [W. M.] 1934:68, Pls. 2-3 [Annals and Magazine of Natural History (Series 10) v. 13 (no. 73) (art. 3); ref. 10159] 3-5 miles above mouth of Nooksack River near Ferndale, Washington, U.S.A. Holotype: USNM 104493 [ex UW 2336]. Paratypes: FMNH 32759 (1); CAS-SU 26768 (2); UMMZ 64462-63 (1, 6); USNM 92817 (2), 104961 [ex UW 2337], 202534 [ex UW 2336]. Type catalog: Böhlke 1953:16 [ref. 12291], Ibarra & Stewart 1987:81 [ref. 12367]. •Synonym of Spirinchus thaleichthys (Ayres 1860) -- (McAllister 1963:10 [ref. 8075], Lee et al. 1980:125 [ref. 22416], Scott & Crossman 1998:320 [ref. 24570], Mecklenburg et al. 2002:176 [ref. 25968], McPhail 2007:220 [ref. 31199]). Current status: Synonym of Spirinchus thaleichthys (Ayres 1860). Osmeridae. Habitat: freshwater, brackish, marine.