HELIX ALB0LABBI8. 



247 



Fig. 198. 



Pig. laa. 



. Fig. 19S.—Relix aibolabiv, nntni-al size, a, orifice of lung. Also the heart and 

 unsof Limax fiaviJS,Tae.gmfLeCi. 



Fig. 12fl.— Helix albolamx, with the shell removefl to 6how the heart (//) and the 

 lunf ; w, mouth.— This and Figs. 201-204 after Leidy. 



Fig. 198.— Nerve-centres of Helix albolabrvt. 



Fii?. 199.— Jaw Uower figure) and side and top view of teeth of lingual rihbon of 

 gjelix albolabris. 



