acutus, Pseudonus Garman [S.] 1899:169, Pl. 39 (fig. 1) [Memoirs of the Museum of Comparative Zoology v. 24; ref. 1540] Off Galápagos Islands, 0°04'S, 90°24'30"W, Albatross station 3407, depth 885 fathoms. Holotype (unique): MCZ 28630. •Valid as Pseudonus acutus Garman 1899 -- (Nielsen & Cohen in Nielsen et al. 1999:108 [ref. 24448], Castellanos-Galindo et al. 2006:199 [ref. 28944], McCosker & Rosenblatt 2010:190 [ref. 30957], Nielsen 2011:64 [ref. 31293], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Grove et al. 2022:18 [ref. 41326]). Current status: Valid as Pseudonus acutus Garman 1899. Bythitidae. Distribution: Eastern Pacific: Panama south to Peru, including Galapagos Islands (Ecuador). Habitat: marine.