Federal
Status: Not listed (Watters 1995)
Long-Solid - Fusconaia subrotunda
Federal
Status: Not listed (Watters 1995)
Ohio Status: Endangered (Watters 1995)
Key characteristics: Smooth, elongate, and solid shell; beak cavity very deep, green rays on the umbo (Cummings, Mayer 1992).
Similar species: Ebonyshell, pigtoes (Fusconaia and Pleurobema) (Cummings, Mayer 1992).
Description: Shell relatively large, solid, elongate, oval or elliptical, and moderately inflated. Anterior end rounded, posterior end rounded or bluntly pointed. Dorsal margin and ventral margins straight to slightly curved. Umbos low and directed forward. Shell smooth, light brown, becoming dark brown to black in adults. Fine green rays present on juveniles and the umbos of older shells. Length to 5 inches (12.7 cm) (Cummings, Mayer 1992).
Pseudocardinal teeth large and well developed; two in the left valve, one in the right (occasionally with a small tooth on either side). Lateral teeth large and straight; two in the left valve, one in the right. Beak cavity very deep. Nacre white, iridescent posteriorly (Cummings, Mayer 1992).
Hosts: None reported (Watters 1995).
Habitat: Large rivers in gravel (Cummings, Mayer 1992).
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