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). •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]). •Synonym of Hippocampus angustus Günther 1870 -- (Lourie 2016:88 [ref. 34505], Lourie et al. 2016:15 [ref. 34632]). Current status: Synonym of Hippocampus angustus Günther 1870. Syngnathidae: Syngnathinae. Distribution: Northern Australia and Papua New Guinea (if valid). Habitat: marine.