40 



Physa sayii var. warreniana, Lea, 1866. 



Reported only from York, Knox and Aroostook 

 counties. 

 Physa heterostropha (Say), 1817. 



Common in all parts of the State. 

 Physa gyrina (Say), 1821. 



Reported only from Kennebec and Knox counties. 

 Physa elliptica, Lea, 1834. 



Aroostook county (in Bryant Walker's collection, 

 received from Nylander). 

 Aplexa h)rpnorum (Linne), 1758. 



Physa elongata. Say, Gould, Stimpson. 

 Physa hypnorum, Haldeman, Mighels. 

 Nauta elongata, Morse, 1864. 

 Bulinus hypnorum, W. G. Binney, 1865. 

 Bulinus elongatus, Gould, 1870. 

 All over the State. 



LAND SPECIES. 



Alexia myosotis, Draparnaud. 



Auricula denticulata, Gould, 1841. 

 Tralia (Alexia) myosotis, Dall, 1903. 



Portland (Dr. Parsons and Fuller in P. S. N. H.) ; 

 "found in the interstices of a sea-wall in Portland 

 Harbor, at low tide" (Morse). 

 Melampus lineatus, Say. 



Melampus bidentatus, Say, 1822. 

 Auricula bidentata, Gould, 1841. 



In the vicinity of Portland (Morse, Fuller, Lee and 

 Wentworth) ; banks of the New Meadows river, 

 Brunswick (Prof. Lee, Norton and Lermond). 

 Carychium exiguum (Say). 

 Pupa exigua, Say, 1822. 

 Bulimus exiguus, Binney, 185 1. 

 Found throughout the State. 

 Carychium exile, H. C. Lea, 1841. 



Hebron and Buckfield, Oxford county (John A. 

 Allen) ; Aroostook county, common (Nylander), 



