multiannularis, Hippocampus guttulatus Ginsburg [I.] 1937:540, Figs. 56-57 [Proceedings of the United States National Museum v. 83 (no. 2997); ref. 1801] Bay of Biscay, France, northeastern Atlantic. Holotype: UMMZ 111747. Paratypes: UMMZ 111748 (15), USNM 117545 [ex UMMZ 111748] (2). Additional material: 1 doubtfully referred. •Synonym of Hippocampus ramulosus Leach 1814 -- (Wheeler 1973:279 [ref. 7190]). •Synonym of Hippocampus guttulatus but a valid subspecies as described -- (Piacentino & Luzzatto 2004:344 [ref. 28610]). •Synonym of Hippocampus hippocampus (Linnaeus 1758) -- (Kuiter 2009:19 [ref. 30404]). •Synonym of Hippocampus guttulatus Cuvier 1829 -- (Lourie et al. 1999:97 [ref. 23993], Lourie et al. 2016:26 [ref. 34632]). Current status: Synonym of Hippocampus guttulatus Cuvier 1829. Syngnathidae: Syngnathinae. Habitat: brackish, marine.