spectrum, Osmerus Cope [E. D.] 1870:490 [Proceedings of the American Philosophical Society v. 11 (no. 84); ref. 913] Wilton Pond, near the head of southwestern branch of Kennebec River, southwestern Maine, U.S.A. Syntypes: (2) whereabouts unknown. Type catalog: Böhlke 1984:136 [ref. 13621]. •Synonym of Osmerus eperlanus (Linnaeus 1758) -- (McAllister 1963:16 [ref. 8075]). •Valid as Osmerus spectrum Cope 1870 -- (Scott & Scott 1988:154 [ref. 25518], McAllister 1990:77 [ref. 14674], Page & Burr 1991:57 [ref. 18983], Scott & Crossman 1998:viii [ref. 24570]). •Synonym of Osmerus mordax (Mitchill 1814), but a valid subspecies -- (McAllister in Whitehead et al. 1984:402 [ref. 13675], Dorofeeva 1998:51 [ref. 23573]). •Synonym of Osmerus mordax (Mitchill 1814) -- (Scott & Crossman 1998:317 [ref. 24570], Taylor 2001:131 [ref. 25424], Denys et al. 2022:389 [ref. 40085]). Current status: Synonym of Osmerus mordax (Mitchill 1814). Osmeridae. Habitat: freshwater, brackish, marine.