New York Metropolitan Region and New Jersey
Freshwater Mussel Identification Handbook


    


    
Alasmidonta heterodon

Distribution: NY: restricted to a short portion  
of the Neversink River, upper Delaware River 
watershed; NJ: various localities; CT: Fairfield


Conservation status: 
US, NY, NJ, CT: Endangered


Conservation challenges: sites should 
be sought in the lower Delaware watershed 
in New Jersey. If found, living specimens 
of this species should never be collected;
in addition, dead shells of all federally 
endangered species cannot be collected
without a permit.

For more information on restrictions and
permits for this and other protected species, 
go to: Permits