nanus, Urocampus Günther [A.] 1870:179 [Catalogue of the fishes in the British Museum v. 8; ref. 1995] Manchuria, China. Holotype (unique): BMNH 1863.1.22.2 [small specimen]. •Valid as Urocampus nanus Günther 1870 -- (Dawson 1980:832 [ref. 6909], Araga in Masuda et al. 1984:88 [ref. 6441], Dawson 1985:197 [ref. 6541], Nakabo 2000:520 [ref. 25086], Shimizu 2001:24 [ref. 25799], Nakabo 2002:520 [ref. 26001], Choi et al. 2003:233, 556 [ref. 26218], Kuiter 2009:283 [ref. 30404], Hamilton et al. 2016:Supplement 3 [ref. 35615], Kim et al. 2020:87 [ref. 39118], Sonoyama et al. 2020:37 [ref. 37637], Araki & Motomura 2022:[11] [ref. 39296]). Current status: Valid as Urocampus nanus Günther 1870. Syngnathidae: Syngnathinae. Distribution: Northwestern Pacific: northeastern China to Korea and Japan. Habitat: brackish, marine.