
SeahorsesHippocampus
Seahorses are marine fishes characterized by an upright posture, a distinctive horse-like head and neck, and a curled prehensile tail. Their bodies are encased in segmented bony plates, often adorned with variable skin filaments or spines that enhance camouflage. Sizes among the group range from 2 cm to 18 cm (0.8-7.1 in) in length. The genus name Hippocampus is derived from Greek, meaning "sea horse".
This group inhabits sheltered reef areas, seagrass beds, and macroalgae, where individuals cling to corals, sponges, or hydroids using their tails. They are found from shallow subtidal zones down to 40 m (130 ft) deep. Seahorses are suction feeders, primarily consuming small crustaceans and other zooplankton. Males brood eggs within a specialized ventral pouch. Their cryptic nature and camouflage make them challenging for divers to locate.
- distinct horse-like head and neck
- rigid body in upright, vertical posture
- body encased in segmented bony plates
- curled, prehensile tail used for clinging
- often with skin filaments or spines for camouflage
4 species in Seahorses
Other odd-shaped groups
Similar silhouette underwater - worth a look if this was not your animal.
Last Update: August 8, 2026







