CONCHOLOGIA CESTRICA. 4! 
H. cellaria, MULL. 
Helix cellaria, Mull., Hist. Verm., II., 1773. 
H. cellaria, —[(B. & B.] Jaw of H. cellaria, young and old. 
{ Morse. ] 
Fig. 57. 
ZVQYP 
Shell depressed, polished, light greenish above, pale 
beneath; whorls 5, flattened; aperture oblique, sub- 
circular; umbilicus small; lip thickened within, and sub- 
reflected near its base ; lingual membrane with 38 curving 

Lingual Dentition of H. cellaria.—|Morse.] 
Fig, 58, 

rows of 17-I-17 teeth, each; buccal plate strongly 
arcuate, with a median projection. H. 7, W. 13, mill. 
Station, in cellars and gardens, in and near maritime 
cities. Chester County; Philadelphia. 
Oss. — Introduced from England. 
H. indentata, Say. 
Felix indentata, Say; Jour) Acad) Phila. F7S., Il; 1822: 
Shell small, thin, depressed, pellucid, yy, indentata. 
pale, highly polished; whorls 4, rapidly ee PA 
enlarging, with distant radiating, impressed, 
lines, which extend to the indented centre 
of the imperforate base ; aperture expanded ; 
peristome thin, acute, reaching to the basal 
centre. Ho 2, W. 5, mill. 
4* 


