arenarius, Platycephalus Ramsay [E. P.] & Ogilby [J. D.] 1886:577 [Proceedings of the Linnean Society of New South Wales v. 10 (pt 4); ref. 18597] Middle Harbor, Port Jackson, New South Wales, Australia. Holotype (unique): AMS B.7136. Appeared first as name only in Ramsay & Ogilby 1885:v [ref. 19305]. •Valid as Platycephalus arenarius Ramsay & Ogilby 1886 -- (Allen & Swainston 1988:52 [ref. 25477], Paxton et al. 1989:467 [ref. 12442], Kuiter 1993:102 [ref. 23929], Allen 1997:80 [ref. 23977], Kuiter 1997:100 [ref. 25488], Knapp 1999:2407 [ref. 24807], Johnson 1999:729 [ref. 25471], Paxton et al. 2006:939 [ref. 29079]). •Synonym of Platycephalus endrachtensis Quoy & Gaimard 1825 -- (Imamura 2008:404 [ref. 29892], Imamura 2015:190 [ref. 33640]). Current status: Synonym of Platycephalus endrachtensis Quoy & Gaimard 1825. Platycephalidae. Habitat: brackish, marine.