366 



ARTHUR C. WALTON. 



chitinous rods of the two forms (Text-figs. C and D}. The num- 

 ber and relative positions of the postanal papillae in A. canis 



TEXT-FIG. A. 



TEXT-FIG. B. 



differ from those of A.felis (Text-figs. E and F). These results 

 substantiate those recorded by Glaue ('08 and '09), and are of 



TEXT-FIG. C. 



TEXT-FIG. D. 



too constant and specific a character to be classed as variations 

 of the same species, as claimed by Schoppler and Kriiger ('12). 



TEXT-FIG. E. 



TEXT-FIG. F. 



