Work found, with species-group names introduced therein:
Dall, W. H. 1925. Illustrations of unfigured types of shells in the collection of the United States National Museum. Proceedings of the United States National Museum 66(2554) 1-41, 36 pls. [Stated date: -- --- 1925; true date: 22 Sep 1925.] Euspira bahamensis, see Sigatica semisulcata (Gray, 1839)