quadrispinosum, Acanthidium McCulloch [A. R.] 1915:100, Pl. 14 (figs. 5-8) [Biological Results Endeavour v. 3 (pt 3); ref. 2941] Great Australian Bight, edge of Bank between Gabo Island and Cape Everhard, Victoria, depth 150-250 fathoms. Holotype: AMS E.5452 [or E.5453] (missing). Paratypes: (4) AMS I.13536 (1), QM I.2325 [ex AMS E.4331] (1), SAMA F200 [ex AMS E.4307] (1), NMV R.5949 [ex AMS E.4308] (1). Apparently should be Deania quadrispinosa. •Valid as Deania quadrispinosus (McCulloch 1915) -- (Bass et al. 1986:54 [ref. 5636]). •Valid as Deania quadrispinosum (McCulloch 1915) -- (Paulin et al. 1989:13 [ref. 24556], Compagno et al. 1991:60 [ref. 21083], Bianchi & Carpenter in Bianchi et al. 1993:81 [ref. 25472], Compagno & Niem 1998:1225 [ref. 23787], Compagno 1999:473 [ref. 25589], Hutchins 2001:14 [ref. 25847], Hoese & Gates 2006:152 [ref. 28997], White 2008:88 [ref. 30617], Almeida & Biscoito 2019:95 [ref. 37302]). •Valid as Deania quadrispinosa (McCulloch 1915) -- (Compagno 1984:68 [ref. 6474], Gubanov & Timoxin 1989:225 [ref. 36138], Paxton et al. 1989:34 [ref. 12442], Shcherbachev et al. 1989:164, 165 [ref. 36134], Springer 1990:14 [ref. 19315], Gomon et al. 1994:101 [ref. 22532], Last & Stevens 1994:71 [ref. 23873], Heemstra in Smith & Heemstra 1995:v [ref. 21953], Duffy et al. 2015:138 [ref. 34222], Weigmann 2016:55 [ref. 34211], Compagno 2016:1177 [ref. 34544], White et al. 2018:50 [ref. 35860], White & Ko'ou 2018:14 [ref. 35922], Ebert et al. 2021:27 [ref. 38234], Stefanni et al. 2021:6 [ref. 38096], Ebert 2022:429 [ref. 39657], Gloerfelt-Tarp & Kailola 2022:3 [ref. 41223], Leeney 2024:23 [ref. 40985]). Current status: Valid as Deania quadrispinosa (McCulloch 1915). Centrophoridae. Distribution: South Atlantic; Indo-Pacific, mostly Southern Hemisphere. Habitat: marine.