Distribution
                    
                        Western Pacific:  Japan, Taiwan (Ref. 5193), Philippines, Australia, New Zealand (Ref. 5755).  Eastern Atlantic:  16?11'N (ISH unpublished) to Namibia (Ref. 4506) and South Africa (one specimen washed ashore at Xora River and 1 found in the tide pool at Simonstown, False Bay).  Western Atlantic:  Florida, USA and Cuba (Ref. 7251).  Probably circumtropical.