†Cryptomya californica magna Dall 1921 (California softshell)
Alternative combination: Cryptomya magna
Belongs to Cryptomya californica according to L. G. Hertlein and U. S. Grant 1972
See also Grant, IV and Gale 1931
Sister taxa: none
Ecology: facultatively mobile infaunal suspension feeder
Distribution: there are no occurrences of Cryptomya californica magna in the database