Hippocampus pusillus

{{Short description|Species of fish}}

{{Speciesbox

| name = Pygmy thorny seahorse

| status = DD

| status_system = IUCN3.1

| status_ref = {{cite journal | author = Pollom, R. | year = 2017 | title = Hippocampus pusillus | journal = The IUCN Red List of Threatened Species | volume = 2017 | page = e.T47728648A47728851 | doi = 10.2305/IUCN.UK.2017-3.RLTS.T47728648A47728851.en | doi-access = free }}

| status2 = CITES_A2

| status2_system = CITES

| status2_ref = {{Cite web|title=Appendices {{!}} CITES|url=https://cites.org/eng/app/appendices.php|access-date=2022-01-14|website=cites.org}}

| taxon = Hippocampus pusillus

| authority = R. Fricke, 2004

}}

Hippocampus pusillus, the pygmy thorny seahorse, is only known from specimens that were dredged at depths between 35 and 228m off the coast of New Caledonia.Fricke, R. (2004). Review of the pipefishes and seahorses (Teleostei: Syngnathidae) of New Caledonia, with descriptions of five new species. Stuttgarter Beiträge zur Naturkunde, 1-67.