42 



Bifidaria corticaria (Say). 



Odostomia corticaria, Say, 1817. 

 Leucochila corticaria, Morse, 1864. 

 Pupa corticaria, W. G. Binney, 1885. 



Cumberland and Oxford counties. 

 Bifidaria contracta (Say), 1822. 



Cumberland, Oxford and Penobscot counties. 

 Bifidaria tappaniana (C. B. Adams), 1842. 



Oxford, Knox, Penobscot and Aroostook counties. 

 Bifidaria pentodon (Say), 1821. 



Pupa curvidens, Gould, 1841 ; Mighels, 1843. 



All over the State. 

 Pupilla muscorum (Linne), 1758. 



Pupa badia, Adams, Gould, Binney, 

 Found in all the coast counties. 

 Pupilla muscorum var. unidentata, Pfeiffer, 1821. 



Thomaston, Knox county (Lermond). 

 Vertigo milium (Gould), W. G. Binney, 1885. 



Reported from York, Cumberland,. Oxford, Kennebec 



and Penobscot counties. 

 Vertigo ovata (Say), 1822. 



Pupa modesta, Say, Gould, Mighels. 



Cumberland, Oxford, Kennebec, Lincoln and Penob- 

 scot counties. 

 Vertigo ventricosa (Morse), 1865. 



Cumberland, Oxford, Hancock, Penobscot and Aroos- 

 took counties. 

 Vertigo ventricosa var. elatior, Sterki, 1894. 



Oxford, Knox, Hancock and Aroostook counties. 

 Vertigo gouldi (Binney), 1843. 



York, Cumberland, Knox, Hancock and Aroostook 



counties. 

 Vertigo gouldi var. paradoxa, Sterki, 1900. 



Woodland, Aroostook county, rare (Nylander). 

 Vertigo bollesiana (Morse), 1865. 



York, Oxford, Hancock, Penobscot and Aroostook 



counties. 

 Vertigo tridentata, Wolf, 1870. 



Quebec and Maine (Pilsbry, 1898 list). 



