pycnosoma, Careproctus Gilbert [C. H.] & Burke [C. V.] 1912:372, Pl. 46 (fig. 3); Fig. 14 [Proceedings of the United States National Museum v. 42 (no. 1907); ref. 1633] Simushir Island, Kuril Islands, Albatross station 4803, 46°42'N, 151°45'E, depth 229 fathoms. Holotype (unique): USNM 73340. •Valid as Allocareproctus pycnosoma (Gilbert & Burke 1912) -- (Sheiko & Fedorov 2000:31 [ref. 25650], Parin et al. 2002:S109 [ref. 28300]). •Valid as Careproctus pycnosoma Gilbert & Burke 1912 -- (Kido 1985:14 [ref. 6720], Pitruk 1990:38 [ref. 20303], Orr & Busby 2001:56 [ref. 25205], Mecklenburg et al. 2002:608 [ref. 25968], Chernova et al. 2004:14 [ref. 27592], Love et al. 2005:103 [ref. 37547], Parin et al. 2014:324 [ref. 33547], Kai et al. 2018:[5] [ref. 35831], Page et al. 2023:190 [ref. 40505]). Current status: Valid as Careproctus pycnosoma Gilbert & Burke 1912. Liparidae. Distribution: Northwestern Pacific: Kuril Islands north to southern Bering Sea. Habitat: marine.