Gould, A. A. (1847). Descriptions of the following Expedition shells of the genera Achatinella and Helicina. Proceedings of the Boston Society of Natural History. 2: 200-203.
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Gould, A. A.
1847
Descriptions of the following Expedition shells of the genera <i>Achatinella</i> and <i>Helicina</i>
Proceedings of the Boston Society of Natural History