litvinovi, Etmopterus Parin [N. V.] & Kotlyar [A. N.] in Kotlyar 1990:141, Fig. 7 [Trudy Instituta Okeanologii Imeni P.P. Shirshova v. 125; ref. 20221] 25°53'S, 84°34'W, southeastern Pacific, depth 1030-1050 meters. Holotype: ZIN 49228. Paratypes: ZMH 24993 [ex ISH 5-1989] (1), 24994 [ex ISH 6-1989] (1); ZIN 49229-32 (1, 1, 2, 2); ZMMU P-17989-91 (2, 4, 15), P-18222 (2). Type catalog: Vasil'eva et al. 2001:12 [ref. 25714], Thiel et al. 2009:15 [ref. 30918]. •Valid as Etmopterus litvinovi Parin & Kotlyar 1990 -- (Compagno 1999:473 [ref. 25589], Last et al. 2002:203 [ref. 26556] with author as Kotlyar, Straube et al. 2011:141 [ref. 31563], Straube et al. 2011:62 [ref. 31679], Vásquez et al. 2015:53 [ref. 34111], Weigmann 2016:60 [ref. 34211], Calle-Morán et al. 2020:244 [ref. 37881], Agne et al. 2022:4 [ref. 39377], Fricke et al. 2024:80 [ref. 41622]). Current status: Valid as Etmopterus litvinovi Parin & Kotlyar 1990. Etmopteridae. Distribution: Eastern Indian Ocean: west of Java (Indonesia); eastern Pacific: Mexico south to off northern Chile. Habitat: marine.