Potamilus amphichaenus
Potamilus amphichaenus, the Texas heelsplitter, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Freshwater Drum (Aplodinotus grunniens) were confirmed as the host fish species for the glochidia reproductive stage of the Texas Heelsplitter. This species is endemic to the United States. See also
U.S. Fish & Wildlife Service, Texas Heelsplitter
U.S. Fish & Wildlife Service, ECOS Environmental Conservation Online System, Texas heelsplitter (Potamilus amphichaenus)

References

Molluscs of the United States
amphichaenus
Molluscs described in 1898
Taxonomy articles created by Polbot