372 THOMSON : MOLLUSCA OF BRISTOL COUNTY, MASS. 



V. simplex Gould. — Westport. Rare in damp places in 

 interstices of old logs with H. eledrina Gould. 



Punctum minutissimum Lea. — Westport and Tiverton. 



Local, but very gregarious, when one is found a search 



will detect them quite numerous close by. Mr. Wm. G. 



Binney decides this species==jP. pygnicBum Drap, It is 



difficult to decide owing to its size. 

 Strobila labyrinthica Say. — ^Dartmouth and Westport. In 



forests of maple and birch under dead leaves. 



Stenotrema monodon Racket.— Westport and Tiverton. 

 Not rare. Found in old pastures and orchards. 



S. monodon var. fraterna Say. — Westport and Tiverton. 

 Found in old pastures and orchards. 



Mesodon albolabris Say. — New Bedford, Dartmouth, West- 

 port, and Tiverton. Common in forests and old pastures. 



M. albolabris var. dentata. — New Bedford, Dartmouth, 

 Westport, and Tiverton. Common in forests and old 

 pastures. 



M. thyroides Say. — New Bedford, Dartmouth, Westport, 

 and Tiverton. Widely scattered. I have found them most 

 abundant on hill sides near salt water. I found some 

 years since on Palmer's Island, in our harbour a fine 

 variety of a dark red-brown colour and the lip a fine pink, 

 which, however, fades after a time. 



M. sayii Binney. — Westport and Tiverton. Very rare. I have 

 only found it near streams of water. 



Acanthinula harpa Say. — Westport and Tiverton. Found in 

 groves of maples among the leaves and moss. 



Vallonia minuta Say. — Dartmouth and Westport. Common. 

 In dry places under chips and stones. I cannot consider 

 this species to =Zr. pulchella Miiller. 



Fruticicola hispida L.— Introduced. Although not in the 

 limits of the county, I received several specimens some years 



J.C, iv., October, 1885. 



