macracanthus, Centroscymnus Regan [C. T.] 1906:436 [Annals and Magazine of Natural History (Series 7) v. 18 (no. 108) (art. 70); ref. 15711] Strait of Magellan. Holotype (unique): BMNH 1884.2.6.7. •Valid as Centroscymnus macracanthus Regan 1906 -- (Compagno 1984:58 [ref. 6474], Waller 1999:842 [ref. 23948], Soto 2001:27 [ref. 26635], Stewart & Last 2015:152 [ref. 34225] as ? macracanthus). •Valid as Scymnodon macracanthus (Regan 1906) -- (Taniuchi & Garrick 1986:119 [ref. 5721], Pequeño 1989:12 [ref. 14125], Paulin et al. 1989:16 [ref. 24556], Compagno 1999:474 [ref. 25589], White et al. 2014:8 [ref. 33542], Weigmann 2016:64 [ref. 34211], Vaz 2021:[3] [ref. 38261], Kemper & Ebert 2022:439 [ref. 39661], Carvalho-Filho 2023:294 [ref. 40480]). Current status: Valid as Scymnodon macracanthus (Regan 1906). Somniosidae. Distribution: Southern Hemisphere: Southwestern Atlantic; southern Indian Ocean; southwestern Pacific. Habitat: marine.