SRRU Length:   ~ 46 Miles

Location:  Limestone, Madison, Marshall and Morgan Counties AL.

Priority Species: 

Crayfish:  Phantom Cave Crayfish, White Spring Cave Crayfish.

Mussels:  Spectaclecase, Longsolid, Pink Mucket, Black Sandshell,  Sheepnose, Ohio Pigtoe, Rough Pigtoe, Pyramid Pigtoe, Round Pigtoe, Monkeyface, Appalachian Monkeyface, Slabside Pearlymussel (H), Kidneyshell, Rabbitsfoot (H), Mucket (H),  Fanshell (H), Spike (H), Cumberlandian Combshell (H), Snuffbox (H), Round Hickorynut (H), White Wartyback (H), Tennessee Clubshell (H).

Snails:  Round-rib Elimia, Rugged Hornsnail.

(H) = Historic (species historically occurred in the SHU or SRRU but, it has either not been collected in a number of years, and may be considered extirpated, or the species could be present but there aren’t recent records to document its presence).