On a Collection of Mursia (Crustacea, Decapoda, Brachyura, Calappidae) from Balicasag Island, Philippines

Collections of the deep water calappid crab genus Mursia at the National Science Museum, Tokyo, and the National Museum of the Philippines assembled between 1994 and 2003 off Balicasag Island, Philippines, have been studied. Six species have been identified, of which four are new: M. baconaua, M. buwaya, M. diwata, and M. mameleu. The new species are described, photographed and illustrated.