spinosissimus, Hippocampus Weber [M.] 1913:120, Fig. 44 [Die Fische der Siboga-Expedition; ref. 4602] Sapeh Strait, Indonesia, Siboga station 49, depth 70 meters. Syntypes: ZMA 104655 [or 104665] (2). Type catalog: Nijssen et al. 1982:80 [ref. 19236]. •Valid as Hippocampus spinosissimus Weber 1913 -- (Paxton et al. 1989:422 [ref. 12442], Lourie et al. 1999:231 [ref. 23766], Lourie et al. 1999:121 [ref. 23993], Randall & Lim in Randall & Lim 2000:604 [ref. 25122], Horne 2001:245 [ref. 25696], Hutchins 2001:27 [ref. 25847], Kuiter 2001:330 [ref. 25900], Choo & Liew 2003:271 [ref. 26841], Adrim et al. 2004:119 [ref. 27715] as spinossisimus, Choo & Liew 2004:411 [ref. 28042], Mehanna & Al-Mahdawi 2006:126 [ref. 36858], Kuiter 2009:105 [ref. 30404], Allen & Erdmann 2012:205 [ref. 31980], Kottelat 2013:305 [ref. 32989], Lourie 2016:112 [ref. 34505], Lourie et al. 2016:40 [ref. 34632], Zhang et al. 2016:385 [ref. 34762], Hamilton et al. 2016:Supplement 2 [ref. 35615], Short et al. 2019:121 [ref. 36532], Gloerfelt-Tarp & Kailola 2022:111 [ref. 41223], Moots 2022:472 [ref. 39722], Allen & Erdmann 2024:224 [ref. 40796]). Current status: Valid as Hippocampus spinosissimus Weber 1913. Syngnathidae: Syngnathinae. Distribution: Eastern Indian Ocean, western Pacific: Sri Lanka east to Philippines, south to northern Australia. Habitat: brackish, marine.