ardesiaca, Nansenia Jordan [D. S.] & Thompson [W. F.] 1914:210, Pl. 24 (fig. 2) [Memoirs of the Carnegie Museum v. 6 (no. 4); ref. 2543] Okinose, Sagami Sea, Japan, depth 350 fathoms. Holotype: FMNH 57086 [ex CM 6023a]. Type catalog: Henn 1928:53 [ref. 12305], Ibarra & Stewart 1987:59 [ref. 12367]. •Valid as Nansenia ardesiaca Jordan & Thompson 1914 -- (Machida in Okamura & Kitajima 1984:143, 333 [ref. 8057], Uyeno in Masuda et al. 1984:40 [ref. 6441], Paxton et al. 1989:167 [ref. 12442], Heemstra in Smith & Heemstra 1995:viii [ref. 21953], Shinohara et al. 1996:159 [ref. 26605], Merella et al. 1997:213 [ref. 23098], Paxton & Cohen 1999:1885 [ref. 24738], Nakabo 2000:285 [ref. 25086], Paxton et al. in Randall & Lim 2000:589 [ref. 25122], Hutchins 2001:18 [ref. 25847], Shinohara et al. 2001:295 [ref. 25995], Nakabo 2002:285 [ref. 26001], Shinohara et al. 2005:403 [ref. 28370], see Mundy 2005:157 [ref. 28379], Paxton et al. 2006:378 [ref. 28994], Shao et al. 2008:240 [ref. 29952], Poulsen 2015:525 [ref. 33965] and as cf. ardesiaca on p. 519). Current status: Valid as Nansenia ardesiaca Jordan & Thompson 1914. Microstomatidae. Distribution: Indo-West Pacific. Habitat: marine.