MUSEUM OF COMPARATIVE ZOOLOGY. 203 



EXPLANATION OF PLATES. 



PLATE I. 



Anadenus Cockerelli. Animal and internal shell. 



Patula strigosa, var. Buttoni. 



Arionta ruficincta. 



Glandina decussata, var. Singleyana. 



Liguus fasciatus, var. from Key Vacoas. 



Bulimulus Dormani. 



Arionta Ayersiana. 



Zonites Simpsoni, enlarged. 



Binneya notabilis, enlarged. 



Same as Figure 2, toothed variety. 



PLATE II. 



Pupa calamitosa, reduced from original figure. 

 Pupa hordeacella, from original figure. 

 Selenites Duranti, var. Catalinensis, enlarged. 

 Orthalicus undatus, variety. 

 Selenites Vaneouverensis, var. Keepi, enlarged. 

 Triodopsis MuUani, var. Blandi. 

 B. Arionta tudiculata, var. cypreophila. 

 Bulimulus Ragsdalei, enlarged one half 



PLATE III. 



Limax Hemphilli, var. pictus. Animal and internal sliell. 



Zonites Diegoeneis, enlarged. 



Zonites macilentus, enlarged. 



Tebennophorus Hemphilli, jaw. 



Anadenus Cockerelli, jaw and tongue. 



Pristiloma Lansingi, enlarged. 



Zonites Caroliniensis, enlarged. 



Helicodiscus fimbriatus, var. sj>lraonaceus, enlarged. 



Zonites sculptilis, enlarged. 



