EXPLANATION OF FIGURES. 



la. Diphascon scoticitm, dorsal view. 

 \b. The same, teeth, gullet, and 



pharynx. 



if. The same, claws. 

 2a. Diphascon bullatiiui, lateral 



view. 

 2b. The same, dorsal view. 



2c. The same, teeth, gullet, and 



pharynx. 



2d. The same, claws. 

 2e. The same, optical section about 



third legs. 

 2/i The same, optical section about 



first legs. 



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