| Publication Type: | Journal Article |
| Year of Publication: | 1933 |
| Authors: | H. A. Pilsbry |
| Journal: | Proceedings of the Academy of Natural Sciences of Philadelphia |
| Volume: | 85 |
| Pagination: | 67-76, pl. 2 |
| Publication Type: | Journal Article |
| Year of Publication: | 1933 |
| Authors: | H. A. Pilsbry |
| Journal: | Proceedings of the Academy of Natural Sciences of Philadelphia |
| Volume: | 85 |
| Pagination: | 67-76, pl. 2 |