medius, Clinus Reinhardt [J. C. H.] 1837:114, 121-122, 194 [Det Kongelige Danske videnskabernes selskabs naturvidenskabelige og mathematiske afhandlinger v. 7; ref. 3691] Fiskenaesset, southwestern Greenland. Syntypes: ZMUC 253 (1), 254 (1). Type catalog: Nielsen 1974:76 [ref. 9588]. On pp. 32, 39-40 & 112 of separate. •Valid as Lumpenus medius Reinhardt 1837 -- (Robins & Ray 1986:234 [ref. 23100], Scott & Scott 1988:422 [ref. 25518]). •Valid as Anisarchus medius (Reinhardt 1837) -- (Makushok 1973:538 [ref. 6889], Lindberg & Krasyukova 1975:89 [ref. 7348], Eschmeyer & Herald 1983:248 [ref. 9277], Sheiko 1983:18 [ref. 37041], Makushok in Whitehead et al. 1986:1127 [ref. 13677], McAllister 1990:169 [ref. 14674], Lavrova 1990:48 [ref. 20302], Miki in Okamura et al. 1995:207 [ref. 22531], Sokolovskaya et al. 1998:12 [ref. 24670], Sheiko & Fedorov 2000:38 [ref. 25650], Mecklenburg et al. 2002:758 [ref. 25968], Fedorov et al. 2003:121 [ref. 27579], Mecklenburg & Sheiko 2004:11 [ref. 27604], Nelson et al. 2004:158 [ref. 27807], Love et al. 2005:146 [ref. 37547], Mecklenburg et al. 2007:180 [ref. 29448], Møller et al. 2010:65 [ref. 31169], Mecklenburg et al. 2011:129 [ref. 31212], Yamanaka & Yabe 2012:70 [ref. 32075], Page et al. 2013:163 [ref. 32708], Dolgov 2013:920 [ref. 33112], Shinohara et al. 2014:268 [ref. 33330], Parin et al. 2014:434 [ref. 33547], Mecklenburg & Steinke 2015:165 [ref. 34033], Tohkairin et al. 2015:12 [ref. 35331], Afonso et al. 2016:68, 89 [ref. 36199], Kells et al. 2016:276 [ref. 35888], Mecklenburg et al. 2016:195 [ref. 34440], Mecklenburg et al. 2018:372 [ref. 36370], Dyldin & Orlov 2021:850 [ref. 38925] with question, Love et al. 2021:186 [ref. 39279], Chernova et al. 2022:7 [ref. 39177]). Current status: Valid as Anisarchus medius (Reinhardt 1837). Lumpenidae. Distribution: Arctic Ocean and adjacent North Pacific and North Atlantic. Habitat: marine.