microstoma, Macropinna Chapman [W. M.] 1939:509, Figs. 59-61 [Proceedings of the United States National Museum v. 86 (no. 3062); ref. 817] Northeastern Pacific, 53°50'00"N, 134°20'00"W, 900-700 meters of wire out. Holotype: USNM 108143. Paratypes: (27) SU 34472 (1), USNM 108177-85 (2, 1, 1, 1, 1, 1, 1, 1, 1). •Valid as Macropinna microstoma Chapman 1939 -- (Fujii in Masuda et al. 1984:41 [ref. 6441], Matarese et al. 1989:74 [ref. 26885], Pequeño 1989:29 [ref. 14125], McAllister 1990:72 [ref. 14674], Nakabo 2000:288 [ref. 25086], Sheiko & Fedorov 2000:18 [ref. 25650], Mecklenburg et al. 2002:155 [ref. 25968], Nakabo 2002:288 [ref. 26001], Fedorov et al. 2003:29 [ref. 27579], Nelson et al. 2004:85 [ref. 27807], Love et al. 2005:30 [ref. 37547], Page et al. 2013:85 [ref. 32708], Parin et al. 2014:107 [ref. 33547], Burton & Lea 2019:39 [ref. 37205], Dyldin & Orlov 2021:68 [ref. 38158], Love et al. 2021:46 [ref. 39279], Page et al. 2023:81 [ref. 40505]). Current status: Valid as Macropinna microstoma Chapman 1939. Opisthoproctidae. Distribution: Pacific: northern Japan and Kuril Islands (Russia) north to Bering Sea; Gulf of Alaska (U.S.A.) south to Chile, including Juan Fernandez Islands (Chile). Habitat: marine.