alcicornis, Centridermichthys Herzenstein [S. M.] 1890:115 [25] [Mélanges Biologiques, tirés du Bulletin physico-mathématique de l'Académie Impériale des Sciences de St. Pétersbourg v. 13; ref. 2149] Tokyo, Japan. Holotype (unique): ZIN 8718. On p. 25 in Bull. Acad. Imp. Sci. St. Pétersb. (n. s.) v. 2. •Valid as Alcichthys alcicornis (Herzenstein 1890) -- (Watanabe 1960:131 [ref. 11959], Yabe in Masuda et al. 1984:329 [ref. 6441], Kim & Youn 1992:70 [ref. 22287], Shinohara et al. 1996:175 [ref. 26605], Sokolovskaya et al. 1998:9 [ref. 24670], Choi et al. 2003:262, 573 [ref. 26218]). •Synonym of Alcichthys elongatus (Steindachner 1881) -- (Parin et al. 2002:S68 [ref. 28300], Parin et al. 2014:233 [ref. 33547]). Current status: Synonym of Alcichthys elongatus (Steindachner 1881). Psychrolutidae: Psychrolutinae. Habitat: marine.