MolluscaBase source details
Marston, G. T. (1890). Occurrence of Helicina occulta Say, in Brown Co., Wis. The Nautilus. 3(10): 113.
420798
Marston, G. T.
1890
Occurrence of <i>Helicina occulta</i> Say, in Brown Co., Wis.
The Nautilus
3(10): 113
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