MolluscaBase source details
Pilsbry, H. A. & Henderson, J. (1931). A new subspecies of Polygyra from Idaho. The Nautilus. 44(4): 121-122, pl. 5, figs. 8-10.
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Pilsbry, H. A. & Henderson, J.
1931
A new subspecies of <i>Polygyra</i> from Idaho.
The Nautilus
44(4): 121-122, pl. 5, figs. 8-10
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Polygyra mullani tuckeri Pilsbry & J. Henderson, 1931 accepted as Cryptomastix mullani tuckeri (Pilsbry & J. Henderson, 1931) (original description)