ramulosus, Hippocampus Leach [W. E.] in Leach & Nodder 1814:105, Pl. 47 (color) [Zoological miscellany; being descriptions of new, or interesting animals v. 1-3; ref. 2738] Locality not known, probably Mediterranean Sea. Holotype (unique): BMNH 1982.6.17.41. •Valid as Hippocampus ramulosus Leach 1814 -- (Wheeler 1973:279 [ref. 7190], Dawson in Whitehead et al. 1986:631 [ref. 13676], Dawson 1990:660 [ref. 17542], Gomon 1997:250 [ref. 22842], Santos et al. 1997:74 [ref. 23531], Arruda 1997:65 [ref. 24952], Golani 2005:31 [ref. 37112], Golani 2021:35 [ref. 38303]). •In the synonymy of Hippocampus guttulatus Cuvier 1829 -- (Bilecenoğlu et al. 2002:68 [ref. 26753], Lipej & Dulčić 2010:36 [ref. 36649]). •Synonym of Hippocampus hippocampus (Linnaeus 1758) -- (Kuiter 2009:19 [ref. 30404]). •Hippocampus species inquirenda -- (Lourie et al. 2016:45 [ref. 34632]). Current status: Synonym of Hippocampus guttulatus Cuvier 1829. Syngnathidae: Syngnathinae. Habitat: marine.