multispinus, Hippocampus Kuiter [R. H.] 2001:331, Fig. 45 [Records of the Australian Museum v. 53; ref. 25900] Arafura Sea, Northern Territory, Australia, 10°49'S, 135°07'E, depth 54 meters. Holotype: NTM S12955-009. Paratypes: CSIRO B 3594 (?); NTM S12611-012 (1), S13917-001 (1), S13257-001 (1), S13326-003 (1), S13974-006 (1), S13541-001 (1). •Synonym of Hippocampus angustus Günther 1870 -- (Lourie 2016:88 [ref. 34505], Lourie et al. 2016:15 [ref. 34632]). •Valid as Hippocampus multispinus Kuiter 2001 -- (Paxton et al. 2006:827 [ref. 29073], Kuiter 2009:96 [ref. 30404], Larson et al. 2013:77 [ref. 32988], Hamilton et al. 2016:Supplement 2 [ref. 35615], Allen & Erdmann 2024:222 [ref. 40796] as multipsinus). Current status: Valid as Hippocampus multispinus Kuiter 2001. Syngnathidae: Syngnathinae. Distribution: Eastern Indian Ocean, western Pacific: northern Australia and Papua New Guinea. Habitat: marine.