MolluscaBase source details
Cockerell, T. D. A. (1927). A large form of Oreohelix yavapai in the Grand Canyon. The Nautilus. 40(3): 101.
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Cockerell, T. D. A.
1927
A large form of <i>Oreohelix yavapai</i> in the Grand Canyon.
The Nautilus
40(3): 101
Publication
Date
action
by
Oreohelix yavapai fortis T. D. A. Cockerell, 1927 (original description)