180 



Genus Ixodes 



specimens amounting to slight cornua). Palps medium, article 2 slightly 

 longer than 3 ; article 1 prominent ventrally. Hypostome large, with 

 strong, equal teeth, 3 1 3 to 2 | 2. Legs as in the </", except that the 

 internal spur on coxa I is shorter and directed somewhat more 

 outwardly. 



Fig. 173. I. hexagonus ? : capitulum and scutum, ventral aspect of capitulum with coxae, 

 tarsus 4, spiracle and anal groove. Specimen from Myopotamus coypu, S. America. 

 (N. 826. Original, F. M. H. del.) 



Fig. 174. J. hexagonus ? \ capitulum in dorsal, ventral and lateral aspects. (Original, 



G. H. F. N. del.) 



Fig. 175. I. hexagonut ? : tarsi 1 and 4, highly magnified, from mounted specimen. 

 (British origin. Original, G. H. F. N. del.) 



