microstomus, Macrurus Regan [C. T.] 1908:221, Pl. 23 (fig. 2) [The Transactions of the Linnean Society of London. Second Series. Zoology v. 12 (pt 3); ref. 3634] Saya de Malha Bank, Indian Ocean, depth 300-500 fathoms. Holotype (unique): BMNH 1908.3.23.47. Original genus should have been Macrourus. •Valid as Mataeocephalus microstomus (Regan 1908) -- (Iwamoto in Cohen et al. 1990:245 [ref. 18936], Adam et al. 1998:1 [ref. 23610]). •Synonym of Mataeocephalus acipenserinus (Gilbert & Cramer 1897) -- (Sazonov et al. 2003:284 [ref. 27176]). Current status: Synonym of Mataeocephalus acipenserinus (Gilbert & Cramer 1897). Macrouridae. Habitat: marine.