List of Plates. xiii 



Elate XL 



( 'eraurus pleurexwdkemus, Green, (enlarged). 



A. Transverse section of thorax at 4th segment. 



B. Interior of dorsal shell. 



C. Longitudinal section at median line. 



D. Longitudinal section of single segment. 

 For details, see page 162 of text. 



Plate XII. 



Fig. 1. Bulimulus paUidhr, Sowb. Genitalia. 



2. Helix aspera, Fer. 



3. " spinosa, Lea. 



4. Limax montanus, Ing. 



5. Helix arrosa, Gould. 

 (5. " septemvolua, Say. 



7. Ariolimax HemphiMi, Binney. 



8. Helix erispaia, Fer. 



9. Ariolimax Andersoni, Cooper. 



Plate XIII. 



Fig. A. Helix rvcjttn&a, Newc. Genitalia. 



B. Zordtes cerinoideus, Anth. Dentition. 



C. AmpMtndima Rawsonis, Bland. Genitalia. 



D. CcecilianeUa Qundlachi, Pfr. Jaw. 



E. Orlli'ilirns undcdus, Brug. (var.) Dentition. 



F. Helix Jamaicensis, Chemn. Genitalia. 



G. Same as D, enlarged. 

 II. Same, dentition, in part. 



I. " 



J. Stroph'xi incana, Binn. Dentition. 

 K. Helix Carperderiana, Bland. " 



Platk XIV. 



Fig. A. Helix fringiMa, Pfr. * Dentition. 



B. " Jamaicensis, Chemn. " 



C. " Studeriana, Fer. " 



D. AchcdineUa venusta, Mighels. " 



E. AmpJiibidima Rawsonis, Bland. " 



F. Glandina truncata, Say. " 



G. Achatinella textilis, Fer. " 

 H. " ubesa, Newc. " in part. 



* See Plate XV, fig. A. 



