exilis, Bathylychnops Cohen [D. M.] 1958:50, Figs. 1-5 [Stanford Ichthyological Bulletin v. 7 (no. 3); ref. 877] About 1500 miles south of Dutch Harbor, Aleutians, North Pacific, 39°08'N, 164°51'W, depth 0-100 meters. Holotype (unique): USNM 114700. •Valid as Bathylychnops exilis Cohen 1958 -- (Cohen 1973:156 [ref. 6589], Cohen in Whitehead et al. 1984:395 [ref. 13675], Fujii in Masuda et al. 1984:42 [ref. 6441], Matarese et al. 1989:70 [ref. 26885], McAllister 1990:72 [ref. 14674], Quéro 1990:241 [ref. 14213], Badcock 1988:423 [ref. 24463], Nakabo 2000:287 [ref. 25086], Nakabo 2002:287 [ref. 26001], Love et al. 2005:30 [ref. 37547], Parin et al. 2009:839 [ref. 30628], Parin et al. 2014:107 [ref. 33547], Burton & Lea 2019:39 [ref. 37205], Carneiro et al. 2019:84 [ref. 37250], Prokofiev 2020:704 [ref. 37861], Love et al. 2021:46 [ref. 39279], Prokofiev 2021:391 [503] [ref. 40390], Page et al. 2023:81 [ref. 40505]). Current status: Valid as Bathylychnops exilis Cohen 1958. Opisthoproctidae. Distribution: Pacific: Japan north to Kuril Islands (Russia); British Columbia (Canada) south to Baja California (Mexico), including Guadalupe Island (Mexico); Chile. Habitat: marine.