Utterback, 1915 – North America
Megalonaias nervosa (Rafinesque, 1820)
INHS 12568 (juvenile top, adult bottom). East Fork White River, Lawrence County, Indiana.
Type Species: Unio heros Say, 1829
Megalonaias nervosa (Rafinesque, 1820)
INHS 12568 (juvenile top, adult bottom). East Fork White River, Lawrence County, Indiana.
Type Species: Unio heros Say, 1829