chavesi, Macristium Regan [C. T.] 1903:345 [Annals and Magazine of Natural History (Series 7) v. 12 (no. 69) (art. 31); ref. 3619] Azore, northeastern Atlantic. Holotype (unique): BMNH [ex MCM] (110 mm SL, missing). •Valid as Macristium chavesi Regan 1902 -- (Maul 1973:113 [ref. 7171]). •Synonym of Bathysaurus ferox Günther 1878 -- (Sulak in Whitehead et al. 1984:406 [ref. 13675], Sulak 1990:365 [ref. 15106]). Current status: Synonym of Bathysaurus ferox Günther 1878. Bathysauridae. Habitat: marine.