w 
inhabiting the United States, 421 
38. HELIX CELLARIA. 
H. està orbiculato-depresst, umbilicata, tenui, pellucida, nitidà, 
supra pallidé cornea, subtus lacted ; — quinque ; labro sim- 
plici, acuto; basi intus incrassato. 
Synonyms AND REFERENCES. 
Helix cellària, Müller. Verm. Hist., No. 230. 
Helix nitida, Drap. Hist. des Moll., 117. Pl. viu., 
| Jigs. 23, 25. 
Helix glaphyra, Say. Nich. Eneyc Am. edit., TV. 
PET, A3 
Helix cellaria, Deshyos Eneye. Méth., Vers, II. 
214. : 
Lamarck. Anim. sans Vert., 2d edit., VIIL 
70. 
- DESCRIPTION. 
Animal. Upper surface light indigo blue, darkest 
on the head, neck, and tentaculæ, collar greenish, 
eyes black. Foot narrow and slender, not much 
exceeding in length the diameter of the shell, ter- 
minating acutely. 
Shell. Very much ae. thin, fragile, pellu- 
cid; epidermis light greenish horn-color, smooth, 
highly polished ; whorls five, slightly rounded, with 
minute and almost imperceptible, oblique stria ; 
aperture not dilated, its transverse diameter the 
greatest; umbilicus moderate, regularly rounded, 
deep ; base rounded, a little thickened within, bluish- 
white ; lip simple, acute. 
VOL. III. — NO. IV. 
