willoughbyi, Acrotus Bean [T. H.] 1888:631 [Proceedings of the United States National Museum v. 10 (no. 672); ref. 227] Quinaielt Indian Agency, Damon, Grays Harbor, Washington, U.S.A. Holotype (unique): USNM 39340 (lost). See Mecklenburg 2003:2 [ref. 27304] for remarks on the type specimen. •Synonym of Icosteus aenigmaticus Lockington 1880 -- (Mecklenburg et al. 2002:796 [ref. 25968], Mecklenburg 2003:2 [ref. 27304]). Current status: Synonym of Icosteus aenigmaticus Lockington 1880. Icosteidae. Habitat: marine.