Kaohsiung, Taiwan

trawled from local fishermen

H. 27.9 mm - W. 25.8 mm

Balicasag Isl., Bohol, Philippines

taken by tangle nets at 80 fms

H. 22.2 mm - W. 18.9 mm

off Banka Isl., South Sumatra

trawled

H. 21.3 mm - W. 18.8 mm

Chikura Beach, Boso Peninsula, Honshu, Japan

dived in sand at 10-15 m depth

H. 14.2 mm - W. 13.1 mm