Brevimanus Land Hermit Crab

Coenobita brevimanus is a robust, stocky land hermit crab distributed across Indian and Pacific Ocean coastal regions including Sri Lanka, Southeast Asia, the Malay Archipelago, and many Pacific islands. Its common name references the characteristically small, reduced right claw (the smaller cheliped) relative to the enlarged left claw — a reversed arrangement compared to most coenobitids.

In captivity, C. brevimanus is regarded as one of the more robust and adaptable land hermit crabs. It tolerates a slightly broader temperature range than species like C. perlatus, and its stocky build and deliberate movements make it easier to observe and handle safely. It requires the standard coenobitid setup: deep moist substrate, high humidity, both fresh and saltwater access, and a wide shell selection.

This species is social and prefers group living. Shell exchange and communal moulting chamber construction are commonly observed in well-structured colonies. Diet should be diverse and natural, including dried fruits, shrimp, algae, and coconut products. Calcium supplementation via cuttlebone ensures healthy exoskeleton formation after each moult.

Water: 24–30°C; fresh dechlorinated and marine saltwater dishes both required; deep enough to submerge in. Tank: minimum 60 L terrarium; deep moist sand or sand-coir mix; 75–85% humidity; climbing décor; shell selection. Feeding: omnivore — dried fruit, shrimp, coconut, algae, cuttlebone, commercial hermit crab diet; varied daily. Breeding: pelagic larvae; captive breeding not achievable. Compatibility: social; groups of 3 or more; do not mix species; provide ample natural shells of varying sizes.