4 6 



Zonitoides milium (Morse), 1859. 



Generally distributed over the State, but rare. 

 Circinaria concava (Say)., 1821. 



Over the State but rare. 

 Helix hortensis, Muller, 1774. 



Helix sub-globosa, Binney, 1837. 

 Helix nemoralis, Fuller, 1862. 



On islands along the coast. 

 Hygromia hispida (Linne), 1758. 



Rockland and Thomaston, Knox county (Lermond) 

 Polygyra sayana, Pilsbry, 1907. 

 Helix sayi, Binney, 1840. 

 Mesodon sayii, Morse, 1864. 



All over the State. 

 Polygyra albolabris (Say), 1817. 



All over the State. 

 Polygyra dentifera (Binney), 1840. 



Reported only from Oxford, Piscataquis and Aroos- 



took counties. 

 Polygyra thyroides (Say), 1817. 



"Maine" (Fuller in P. S. N. H.) ; Dr. Jackson's 1837 



list. 

 Polygyra fraterna (Say), 1824. 



Stenotrema monodon, Morse, 1864; W. G. Binney, 1885. 

 Helix monodon, Gould, 1870. 

 Polygyra monodon, Pilsbry, 1898. 

 Common all over the State. 



