Hermit Crab on Alona Beach, Bohol, Philippines

''Coenobita rugosus'' is a species of land hermit crab native to Australia and the east African coast to the south west Pacific.

''C. rugosus'' has four walking legs, a small pincer, a large pincer, and antennae. When threatened ''C. rugosus'' is able to make a 'chirping' sound by rubbing its large pincer against its shell as a stridatory apparatus.

''C. rugosus'' vary in colour depending on nutritional intake and common colours include green, brown and tan, but black, white,.. more