262 AGRICUI^TURE OF MAIXE. 



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, Pilsbr\', 1907. 

 Helix sayi, Binney, 1840. 

 Mesodon sayii, Morse, 1864. 

 All over the State. 

 Polyg>'ra albolabris (Say), 181 7. 



All over the State. 

 Polyg}Ta dentifera (Binney), 1840. 



Reported only from Oxford, I^iscataquis and Aroos- 

 took counties. 

 Polyg}Ta 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. 

 Polyg}Ta monodon, Pilsbry, 1898. 

 Common all over the State. 



