o2 SHELLS OF NEW ENGLAND. 
M. penticutatus, Auct. Voluta denticulata, Mont. 
Auricula denticulata, Gould, 199, f. 127. Found 
about wharves, in seaports, often in situations where 
it is covered for half the time by the sea. It is per- 
haps an imported species. 
CarycuiuM Exicuum, Gould, in Binney’s Terrest. Moll. 
U.S.,i1. 288. Pupa exigua, Say. Gould, 191, f. 120. 
Bulimus exiguus, Binney. 
PNEUMOBRANCHIATA. 
LIMNA AD. 
ANCYLUS PARALLELUS, Hald. A. rivularis, Gould, 224, 
f. 153. (non Say.) 
A. Fuscus, Ad. Gould. 
A. Tarpus, Say. — Vermont. 
Limnxa appressa, Say. — Lake Champlain. 
L. pecottata, Migh. et Ad. — Maine. 
Ll. carascopium, Say. Gould. L. pingwis, Say. L. 
emarginata, Say. 
. AMPLA, Migh. — Maine. 
- MAGASOMA, Say. — Lake Champlain. 
COLUMELLA, Say. Gould. JL. macrostoma, Say. 
CAPERATA, Say. L. umbilicata, Ad. Gould. 
HuMILIS, Say. L. modicellus, Say. Gould. 
pALLIDA, Ad.— Lake Champlain. 
DESIDIOSA, Say. 
» ELODES, Say. Gould. 
PPrePeRee 
- GRACILIS, Jay. — Lake Champlain. 
