Lethotremus Gilbert [C. H.] 1896:449 Masc. Lethotremus muticus Gilbert 1896. Type by monotypy. •Synonym of Eumicrotremus Gill 1862 -- (Oku et al. 2017:54 [ref. 35060], Lee et al. 2017:337 [ref. 35392], Stevenson et al. 2017:420 [ref. 35471]). •Valid as Lethotremus Gilbert 1896 -- (Lindberg & Legeza 1955:439 [ref. 2785], Ueno 1970:122 [ref. 26199], Kido in Masuda et al. 1984:337 [ref. 6441], Lindberg & Krasyukova 1987:368 [ref. 15964], Mecklenburg et al. 2002:556 [ref. 25968], Parin et al. 2002:S109 [ref. 28300], Mecklenburg & Sheiko 2003:11 [ref. 27295], Parin et al. 2014:313 [ref. 33547], Voskoboinikova 2019:533 [ref. 37242]). Current status: Valid as Lethotremus Gilbert 1896. Cyclopteridae: Eumicrotreminae.