Invertebrates

Close-up view of a freshwater mussel shell partially buried in shallow water, showing greenish and yellowish-brown ridges and natural texture, with rocks visible in the background.

Tan Rifleshell

Range: Found only in two rivers in Eastern Tennessee and three in southwest Virginia. Unconfirmed populations reportedly found in the

Elkhorn Coral

Once the most abundant and important reef-building corals in Florida and the Caribbean, elkhorn corals have declined by more than