PLATE X. 

 Ticks. 



Fig. I. — Ccratixodi's ptifiis x 45 

 Distended % dorsal view. 



Fig. 2. — Cerafixodes piiiiis >- 45. 

 Hatchinsf ezz- 



Fig. 3. — Rostrum' of Ixodes riciniis. Fic,_4. — Anterior legs of Ixodes ricimis, 



? X 80. 



showing Haller's organ, x 75. 



SSs •-■.' iv. 



■-%§^' 



i\s>\.vA-; 



"■S^-iP^-^^- ' 



^i2/, 



Fig. 5. — Cast skin uf peritrenie of 

 Ceratixodes pufiis x 150. 



/'//of,:, /'v /•■. Xtuc,/ C/a>/-. 



•'''' ^wji/'l i'< 'li #^i!#\ IfP>Mv v^"' ■ ' 



Fig. 6. — Marginal brushes of Ceratixodes 

 put us c? • X 25. 



Ai//nrJ b' Sou, /ii//» 



