CONCHOLOGIA CESTRICA. 37 
Sub-genus ZONITES, Montrort, I810. 
Animal of Zonites fuliginosus. —[{B. & B.]| 

Shell orbiculate, convex, or discoidal; whorls 6-7, 
gradually increasing, striated above, smooth beneath; 
aperture lunate, oblique; peristome acute, and slightly 
thickened, within. 
Z. fuliginosus, GRIFFITH. 
Helix fuliginosa, Griff. (in litt.), ssa ig Se 
C. B. Adams’ Amer. Jour. . Science, Fig. 44, 

Voli4o, ps273: 
Shell rather large, thin, chestnut- , 
brown, orbicular, depressed; whorls 
4%, increasing rapidly; aperture lu- 
nate-ovate, very oblique; lip thin, 
acute, slightly thickened within, by a 
testaceous deposit; extremities of the 
peristome approximate; umbilicus 
moderate, deep; lingual membrane 
very broad, with 87 rows, of 64-1-64, 
teeth; buccal plate arcuate, margin 
simple, with a blunt, median projec- 
tiene, “El. rgy WW 25; mill: 
Station, in woods. Lancaster County, Pennsylvania. 
Lingual Dentition of Z. fuliginosus. —[B. & B.] 
Fig, 46. 

