1, 3. Little Ocmulgee River, Telfair/Wheeler Co., GA - 1: 143 mm; 3: 108 mm
2, 4. Altamaha River, Long Co., GA - 2: 132 mm; 4: 73 mm
5. Altamaha River, Wayne/Long Co., GA - 26 mm
Elliptio shepardiana (Lea, 1834)
1, 3. Little Ocmulgee River, Telfair/Wheeler Co., GA - 1: 143 mm; 3: 108 mm
2, 4. Altamaha River, Long Co., GA - 2: 132 mm; 4: 73 mm
5. Altamaha River, Wayne/Long Co., GA - 26 mm
Type locality: Hopeton, near Darien, Georgia.
Range: Endemic to the Altamaha River system.
Remarks: This remarkable species is much larger than its relatives angustata and folliculata. Locally common.