Spiny Seahorse
Hippocampus histrix
The Spiny Seahorse (Hippocampus histrix) is a slender Indo-Pacific seahorse with a heavily spined body and long snout. It lives camouflaged among seagrass, algae, and coral rubble; reliable sport-angling value is minimal and it is rarely targeted.
Identification points
- Tall, sharp spines on the head, trunk, and tail give it a bristly outline
- Long tubular snout typical of seahorses, used for suction feeding
- Usually mottled tan, brown, or yellow with a grasping prehensile tail
Habitat
Shallow coastal marine habitats with seagrass beds, macroalgae, coral reefs, and rubble areas; often clings to holdfasts or floating debris in sheltered water.
Bait notes
Not a practical bait species for anglers. If collected for science/aquaria, live mysids, amphipods, or enriched copepods are the appropriate foods; avoid handling or keeping wild-caught seahorses.
Behavior
A slow, cryptic ambush predator that feeds by suction on tiny crustaceans such as copepods and mysids. It grips structure with its prehensile tail and drifts little, relying on camouflage.
Caution
Protected or regulated in many places; check local rules and CITES controls before collection or trade. Handle carefully because the body and tail are delicate; do not dry out or expose to air for long.
Fishing notes
Best treated as a bycatch or observation species, not a target. If incidentally hooked, land gently with a wet hand or soft net, keep it in water as much as possible, and release immediately.