Bigbelly Seahorse
Hippocampus abdominalis
Sighting evidence at Yoda, Izu Peninsula
One of the world's largest seahorse species anchors itself to sponges and algae across Yoda's rubble plain, relying on its prehensile tail rather than swimming to hold station against mild surge. Males gestate and birth live young — an unusual reproductive role reversal that has made seahorses subjects of extensive evolutionary biology research.
Evidence at this site
No confirmed records on file at this site
Bigbelly Seahorse is listed as a curated species here based on historical reports.