HELIX ALB0LABBI8. 



2i7 



Fm. 198. 



Fig. li)9. 



orifice of lung. Also the heart and 



Pig. IK.— Helix albolabris, nataral size, 

 inn^ of Limax Jiaws, mag^nified. 



Fig. 197.— Helix albolabris, with the Bhell removed to show the heart (/;) and tha 

 •nng ; m, moulh.— Thin and Pigs. 201-204 after Leidy. 



Pig. 198.— NiTve-centree ot Helix albolabris. 



Fi?. 199.— Jaw (lower figure) and side and top view of teeth of lingual ribbon of 

 Selix albolabria. 



