xenicus, Calymmichthys Jordan [D. S.] & Thompson [W. F.] 1914:296, Pl. 36 (fig. 2) [Memoirs of the Carnegie Museum v. 6 (no. 4); ref. 2543] Sagami Bay, Japan. Holotype: FMNH 57089 [ex CM 6027]. Type catalog: Henn 1928:98 [ref. 12305], Fricke 1982:71 [ref. 5432], Ibarra & Stewart 1987:20 [ref. 12367]. •Valid as Calymmichthys xenicus Jordan & Thompson 1914 -- (Lindberg & Krasyukova 1975:208 [ref. 7348]). •Valid as Diplogrammus xenicus (Jordan & Thompson 1914) -- (Fricke 1982:71 [ref. 5432], Fricke 1983:504 [ref. 8349], Nakabo in Masuda et al. 1984:344 [ref. 6441], Allen & Swainston 1988:132 [ref. 25477], Allen 1997:212 [ref. 23977], Nakabo 2000:1126 [ref. 25182], Sadovy & Cornish 2000:237 [ref. 25480], Hutchins 2001:42 [ref. 25847], Nakabo 2002:1126 [ref. 26193], Fricke 2002:48 [ref. 26547], Allen & Adrim 2003:56 [ref. 26830], Hoese & Bray 2006:1582 [ref. 29000], Motomura et al. 2010:201 [ref. 31256], Iwatsubo & Motomura 2010:69 [ref. 31555], Seyhan et al. 2017:1 [ref. 35053], Sonoyama et al. 2020:101 [ref. 37637], Murase et al. 2023:42 [ref. 40935], Luo et al. 2024:9 [ref. 41630]). Current status: Valid as Diplogrammus xenicus (Jordan & Thompson 1914). Callionymidae. Distribution: Eastern Indian Ocean, western Pacific: Bohai Gulf (southern China), Taiwan and Ryukyu Islands (Japan) to central Japan; northern Western Australia. Habitat: marine.