Sterki, V. (1889 ["1888"]). A study of the American species of Vertigo contained in the U. S. National Museum, with the description of new subgenus of Pupidae. Proceedings of the United States National Museum. 11: 369-380, pl. 42.
349698
Sterki, V.
1889 ["1888"]
A study of the American species of <i>Vertigo</i> contained in the U. S. National Museum, with the description of new subgenus of Pupidae.