| Authors(s) | Darwin, C. |
| Year | 1844 |
| Title | Brief descriptions of several terrestrial Planariae, and of some remarkable marine species, with an account of their habits. Ann. Mag. N. H. (1) 14: 247-248. |
| Authors(s) | Darwin, C. |
| Year | 1844 |
| Title | Brief descriptions of several terrestrial Planariae, and of some remarkable marine species, with an account of their habits. Ann. Mag. N. H. (1) 14: 247-248. |