ludibundus, Istiophorus Whitley [G. P.] 1933:83 [Records of the Australian Museum v. 19 (no. 1); ref. 4677] Port Stephens, New South Wales, Australia. Holotype: AMS IA.5976. Based on a specimen of Istiophorus gladius described and illustrated by McCulloch 1921:137, Pl. 24 (fig. 1) [ref. 2945]. •Questionably a synonym of Istiophorus platypterus (Shaw 1792) -- (de Sylva 1973:478 [ref. 7210]). •Synonym of Istiophorus platypterus (Shaw 1792) -- (Nakamura 1983:280 [ref. 5371], Nakamura 1985:23 [ref. 20161], Bray et al. 2006:1780 [ref. 29091]). Current status: Synonym of Istiophorus platypterus (Shaw 1792). Istiophoridae. Habitat: marine.