What Divers Should Know About
Sea Horses

Seahorses, members of the genus Hippocampus, are truly distinctive encounters beneath the waves. These small marine bony fish, with 46 known species, are easily recognized by their horse-like head, upright posture, and curled prehensile tail. Rather than scales, their slender bodies are encased in thin skin stretched over a series of protective bony plates, arranged in distinct rings. These unique fish vary considerably in size, ranging from just 1.5 cm (0.6 inches) up to 35 cm (13.8 inches) in length.

Divers typically spot these fascinating creatures in shallow tropical and temperate waters worldwide, often nestled within sheltered habitats. Look for them among seagrass beds, around coral reefs, in estuaries, and sometimes even in mangrove roots. Their swimming ability is notoriously poor, with species like the dwarf seahorse (Hippocampus zosterae) holding the record as the slowest fish, moving at only about 1.5 meters per hour. Consequently, you'll most often find them anchored, their prehensile tail securely wrapped around a piece of coral, a blade of seagrass, or another stationary object. Their adept camouflage allows them to blend remarkably well with their surroundings, making them a rewarding find for the patient observer. Their independently moving eyes, much like a chameleon's, add another layer to their unique appeal.