* Eumicrotremus spinosus (Fabricius, 1776) .

Atlantic Spiny Lumpsucker.To about 14 cm (5.5 in)TL (Mecklenburg et al. 2018). Near Alaska in eastern Beaufort Sea off Canada at Mackenzie River Delta (Mecklenburg et al. 2016) to Greenland and western Atlantic to Cape Cod; eastern North Atlantic, Kara and Barents seas, and Novaya Zemlya (Mecklenburg et al. 2002). Depth: 5–930 m (16–2,983 ft) (min.: Scott and Scott 1988; max.: Andriashev 1954); adults typically at 60–200 m (197–656 ft) (Andriashev 1954). Eumicrotremus eggvinii Koefoed, 1956 is a synonym, originally based on spawning males of Eumicrotremus spinosus (Byrkiedal et al. 2007, Voskoboinikova and Balanov 2019). Historical confusion between this species and E. eggvinii, Eumicrotrema derjugini Popov, 1926, and Eumicrotremus terraenovae Myers and Böhlke, 1950 means that it is difficult to parse out valid capture data.