Species Information
Class of Malacostraca (Crayfish) observations for selected counties
Linked life history provided courtesy of NatureServe Explorer.
Records may include both recent and historical observations.
US Status Definitions
Kentucky Status Definitions
Selected county is: Mercer.
| Scientific Name and Life History | Common Name and Pictures | Class | County | US Status | KY Status | WAP | Reference |
| Cambarus tenebrosus | Cavespring Crayfish | Malacostraca | Mercer | N | N | Reference | |
| Faxonius cristavarius | Spiny Stream Crayfish | Malacostraca | Mercer | N | N | Reference | |
| Faxonius juvenilis | Kentucky River Crayfish | Malacostraca | Mercer | N | N | Reference | |
| Faxonius rusticus | Rusty Crayfish | Malacostraca | Mercer | N | N | Yes | Reference |
| Hyalella azteca | No Common Name (Hyalella azteca) | Malacostraca | Mercer | N | N | Reference |
5 species are listed