Blue-Eyed Hermit Crab

Dardanus scutellatus

The Blue-eyed Hermit Crab is a crustacean belonging to the family Diogenidae. It is known for its distinctive blue eyes, which can help divers identify it among other hermit crabs. This species is commonly found inhabiting the shells of Strombus luhuanus, providing it with protection and mobility. Divers can encounter this hermit crab in the Indo-Pacific region, ranging from East Africa to Japan and Australia. It thrives in tropical climates and is typically found at depths between 0 and 15 meters, often residing in seagrass beds with sandy or muddy bottoms. The Blue-eyed Hermit Crab is a reef-associated species, frequently observed in intertidal zones. The species exhibits a unique reproductive behavior, characterized by a precopulatory courtship ritual that involves olfactory and tactile cues. Mating usually involves indirect sperm transfer, a common trait among members of the order Decapoda. For divers, encountering the Blue-eyed Hermit Crab can be an interesting experience. These crabs are harmless to humans and can often be seen scuttling along the seabed, searching for food or a new shell. The IUCN Red List has not evaluated the conservation status of this species.