mackayi, Lumpenus Gilbert [C. H.] 1896:450, Pl. 32 (top) [United States Commission of Fish and Fisheries, Report of the Commissioner v. 19 (for 1893) (art. 6); ref. 1628] Near the mouth of Nushagak River, Alaska, U.S.A. Lectotype: USNM 48633. Paralectotypes: CAS-SU 3085 (5), ZMUO J1626 (1). Type catalog: Böhlke 1953:100 [ref. 12291], Pethon 1969:11 [ref. 19268], Springer & Anderson 1997:10-11 [ref. 22953]. Lectotype established (as figured specimen) in caption to Pl. 344, p. 3303 in Jordan & Evermann 1900 [ref. 2446]. Lectotype (apparently the same specimen) also designated by Springer & Anderson 1997:10 [ref. 22953]; see Mecklenburg & Sheiko 2004:10 [ref. 27604]. •Valid as Acantholumpenus mackayi (Gilbert 1896) -- (Lindberg & Krasyukova 1975:94 [ref. 7348], Amaoka & Miki in Masuda et al. 1984:301 [ref. 6441], McAllister 1990:169 [ref. 14674], Lavrova 1990:47 [ref. 20302], Sokolovskaya et al. 1998:12 [ref. 24670], Nakabo 2000:1051 [ref. 25182], Sheiko & Fedorov 2000:37 [ref. 25650], Mecklenburg et al. 2002:761 [ref. 25968], Nakabo 2002:1051 [ref. 26193], Fedorov et al. 2003:120 [ref. 27579], Mecklenburg & Sheiko 2004:10 [ref. 27604], Nelson et al. 2004:158 [ref. 27807], Love et al. 2005:145 [ref. 37547], Shinohara & Yabe 2009:398 [ref. 30546], Page et al. 2013:163 [ref. 32708], Shinohara et al. 2014:268 [ref. 33330], Parin et al. 2014:431 [ref. 33547], Mecklenburg & Steinke 2015:165 [ref. 34033], Afonso et al. 2016:68, 76 [ref. 36199], Kells et al. 2016:276 [ref. 35888], Mecklenburg et al. 2016:193 [ref. 34440], Dyldin & Orlov 2017:76 [ref. 35138], Mecklenburg et al. 2018:370 [ref. 36370], Dyldin & Orlov 2021:850 [ref. 38925], Dyldin et al. 2021:51 [ref. 38804], Love et al. 2021:186 [ref. 39279], Page et al. 2023:214 [ref. 40505]). Current status: Valid as Acantholumpenus mackayi (Gilbert 1896). Lumpenidae. Distribution: North Pacific and Arctic Ocean. Habitat: brackish, marine.