Family: VESICOMYIDAE [Calypto clams] W. H. Dall & C. T. Simpson, 1901

(3-5-4-0-18-7-0-0-0-0-0-0-0)
Ref. Abbott, 1974 p 519
Abbott & Dance, 1982 p 351
Amer. Fish. Soc., 1988 p 43
Keen, 1971 p 116
Lindner, 1977 p 114