MolluscaBase source details
Henderson, J. (1931). Schizothaerus nuttallii and varieties on Puget Sound. The Nautilus. 45(1): 32-33.
434049
Henderson, J.
1931
<i>Schizothaerus nuttallii</i> and varieties on Puget Sound
The Nautilus
45(1): 32-33
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Schizothaerus nuttallii (Conrad, 1837) accepted as Tresus nuttallii (Conrad, 1837) (additional source)