Shimek R. L. (1989) Shell morphometrics and systematics: A revision of the slender, shallow-water Cadulus of the northeastern Pacific (Scaphopoda: Gadilida). The Veliger 32(3): 233-246.
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Shimek, R. L.
1989
Shell morphometrics and systematics: A revision of the slender, shallow-water Cadulus of the northeastern Pacific (Scaphopoda: Gadilida)