macdonaldi, Penopus Goode [G. B.] & Bean [T. H.] 1896:336, Pl. 84 (fig. 293) [Special Bulletin U. S. National Museum No. 2; ref. 1848] East of New Jersey, U.S.A., 38°29'30"N, 70°57'W, Albatross station 2716, depth 1631 fathoms. Holotype (unique): USNM 39433. •Valid as Penopus macdonaldi Goode & Bean 1896 -- (McEachran & Fechhelm 1998:734 [ref. 23897]). •Synonym of Penopus microphthalmus (Vaillant 1888) -- (Nielsen & Cohen in Nielsen et al. 1999:84 [ref. 24448] as microcephalus, Moore et al. 2003:207 [ref. 27076], Nielsen & Ohashi 2011:235 [ref. 31451]). Current status: Synonym of Penopus microphthalmus (Vaillant 1888). Ophidiidae: Neobythitinae. Habitat: marine.