HELIX ALBOLABRIS. 



247 



FIG. 196. 



FIG. 198. 



FIG. lay. 



Fig. 196. Helix albolabi-ix, natural size, a, orifice of Inng. Also the heart and 

 'Tm<* of Limax ./??'/., magnified. 



Fig. vyi.Ihiix albolabrix, with the shell removed to show the heart (//) and the 

 ling ; >, moulh. This and Figs. 201-204 after Leidy. 

 Fig. 198. N'Tve-ceiitres of Helix albolabri*. 



i'/. 199. Jaw (lower figure) aud side and top view of teeth of lingual ribbon of 

 a/bolabrit. 



