original description
Davis, C. A. (1904). Notes on the Mollusca of the Bermuda Islands. <em>The Nautilus.</em> 17(11): 125-129, pl. 4.
page(s): 128, pl. 4, fig. 24 [details]
From editor or global species database
Etymology Named for Mr. James M. Southwick, Curator of the Roger Williams' Park Museum, Prividence R. I. [details]
Type locality Hamilton Beach [details]