tuberculatus, Hippocampus Castelnau [F. L.] 1875:48 [Official Record, containing Introduction, Catalogues, Official Awards of the Commissioners, Report and Recommendations of the Experts, and Essays and Statistics on the Social and Economic Resources of the Colony of Victoria.; ref. 768] Swan River, Western Australia. Holotype (unique): ?MNHN A-4539. Type catalog: Russell & Bray 2026:66 [ref. 43233]. •Synonym of Hippocampus breviceps Peters 1869 -- (Paxton et al. 1989:421 [ref. 12442], Gomon et al. 1994:448 [ref. 22532], Lourie et al. 1999:81 [ref. 23993], Lourie et al. 2016:18 [ref. 34632]). •Valid as Hippocampus tuberculatus Castelnau 1875 -- (Hutchins 2001:27 [ref. 25847], Kuiter 2001:313 [ref. 25900], Paxton et al. 2006:829 [ref. 29073], Kuiter 2009:51 [ref. 30404], Hoschke et al. 2019:154 [ref. 36626], Moore et al. 2026:7 [ref. 43288], Russell & Bray 2026:66 [ref. 43233]). Current status: Valid as Hippocampus tuberculatus Castelnau 1875. Syngnathidae: Syngnathinae. Distribution: Southeastern Indian Ocean: southern Western Australia (Australia) endemic. IUCN (2026): Not Assessed. Habitat: brackish, marine.