nigrocaudata, Bothrocarina Suvorov [E. K.] 1935:435 [English p. 439], Figs. 1-2 [Bulletin de l'Academie des Sciences de l'U.R.S.S., Classe des Sciences Mathématiques et Naturelles 1935; ref. 4300] Okhotsk Sea, region of Ozernaya, west Kamchatka, Russia, 51°24.5'N, 156°17'E, depth 235-134 meters. Holotype (unique): ZIN 25072. Type catalog: Balushkin et al. 2011:975 [ref. 32449], Balushkin et al. 2012:162 [ref. 33667]. •Valid as Lycogrammoides nigrocaudatus (Suvorov 1935) -- (Sheiko & Fedorov 2000:37 [ref. 25650], Fedorov et al. 2003:118 [ref. 27579], Dyldin & Orlov 2021:841 [ref. 38925]). •Valid as Bothrocarina nigrocaudata Suvorov 1935 -- (Toyoshima in Masuda et al. 1984:308 [ref. 6441], Anderson 1994:116 [ref. 21438], Nakabo 2000:1041 [ref. 25182], Nakabo 2002:1041 [ref. 26193], Anderson & Fedorov 2004:11 [ref. 27603], Balushkin et al. 2011:975 [ref. 32449], Parin et al. 2014:386 [ref. 33547]). Current status: Valid as Bothrocarina nigrocaudata Suvorov 1935. Zoarcidae: Lycodinae. Distribution: Northwestern Pacific. Habitat: marine.