esca, Cyprinus Bloch [M. E.] & Schneider [J. G.] 1801:446 [M. E. Blochii, Systema Ichthyologiae; ref. 471] Thames River, England. No types known. Based on Pennant 1769:371. •Synonym of Clupea harengus Linnaeus 1758 -- (Svetovidov 1973:99 [ref. 7169], Whitehead 1985:115 [ref. 5141]). Current status: Synonym of Clupea harengus Linnaeus 1758. Clupeidae. Habitat: brackish, marine.