Reticulated Hermit Crab

Aniculus retipes

The Reticulated Hermit Crab is a reef-associated crustacean belonging to the family Diogenidae. Divers can encounter this species primarily in the Indo-Pacific region, where it inhabits coral reefs and areas with rocky and coral rubble bottoms. It is typically found at depths ranging from the surface down to 20 meters. As with other hermit crabs, it uses empty shells to protect its soft abdomen, and it can be identified by its distinct reticulated pattern on its exoskeleton. This species is a member of the order Decapoda, which is known for its gonochoric nature, meaning individuals are distinctly male or female. The Reticulated Hermit Crab engages in a precopulatory courtship ritual that involves both olfactory and tactile cues. Sperm transfer is usually indirect, a common trait among decapods. Divers may find these crabs harmless and interesting to observe as they move along the reef, scavenging for food. The conservation status of the Reticulated Hermit Crab has not been evaluated by the IUCN, and it poses no threat to humans.