Amblema neislerii, the fat threeridge, is a freshwater mussel native to the rivers in southern Georgia and Florida.

The shell is unique to mussels being inflated and also possessing approximately 7-9 prominent parallel ridges.

Also, pollution from people and plants along the rivers, the disappearance of host fish and the introduction of other animals such as the Asian Clam have aided in their decline in population.

This specific mussel has never gotten much attention due to its physical profile that blends in with the usual muddy background and its poor motor skills.

Even being listed under the Endangered Species Act did not bring much attention to this specific mussel.