| Name | Hydrothyria J. L. Russell |
| Authorship | J. L. Russell |
| Rank | Genus |
| Placed in | Peltigeraceae Dumortier |
| Contains | Hydrothyria fontana Nylander Hydrothyria sp. Hydrothyria venosa J. L. Russell |
| Remarks | Type Species: non designatus |
| Citation | 1856 Proc. Essex Inst. 1: 180 |