Photo courtesy of E. Nedeau
NH Conservation Status: Not listed
NH State Rank Status: Vulnerable to extirpation or extinction (globally secure)
Distribution: Parts of the lower Connecticut, Merrimack, and coastal watersheds. Click here to see which watersheds and/or waterbodies the species has been documented.
Description: A large, elongate and thin mussel reaching 6-7 inches in length. Shells are usually yellowish-brown or blackish and have prominent growth lines. The inside shell is usually a white or pinkish color.
Habitat: Rivers, streams, ponds, and lakes with either constant or absent flow. Substrate varies from cobble to silty or sandy.
Life History: Host fish include the anadromous alewife, blueback herring, and American shad.
Conservation Threats: Pollution, dams restricting anadramous fish distribution