Pyganodon

Eastern Floater Pyganodon cataracta. Poorly known. Restricted to Chattahoochee and possibly Chipola River systems. Not reported from the state since the 1970s. Usually found in soft sediments in sluggish water. Habitat often overlooked in surveys. Moderate Conservation Concern.

Giant Floater Pyganodon grandis. Common. Found throughout Alabama. Occurs in almost any habitat, including farm ponds. Lowest Conservation Concern.