| Authors(s) | Cragin, F.W. |
| Year | 1887 |
| Title | First contribution to a knowledge of the lower Invertebrata of Kansas. Bulletin of the Washburn Coll. Lab. Nat. Hist. 2: 27-32. |
| Authors(s) | Cragin, F.W. |
| Year | 1887 |
| Title | First contribution to a knowledge of the lower Invertebrata of Kansas. Bulletin of the Washburn Coll. Lab. Nat. Hist. 2: 27-32. |