340 



ZOOLOGY. 



Order 3. Linguatulina. This group comprises remark- 

 able worm-like forms, which are parasites. The young are 

 mite-like, the body spherical, with boring jaws, and two 



Fig. 308. Milnesium tardigradum, X 

 120 times. 7, mouth-parts; 6, alimentary 

 canal ; ov, ovary. After Doyere. 



Fig. 309. Pentastoma tcenioides. 

 Natural size. From Verrill. 



Fig. 310. Ixodes albipicmsfrom a partly 

 domesticated moose. The tick natural 

 size, gorged with blood, and its six-legged 

 young, niiu'li enlarged, a, beak or man- 

 dibles armed with teeth; b, maxilla, and 

 c, maxillary palpus: d, a foot with sucker 

 aud claws, enlarged. 



Fig. 311. Ixodes bovis. Natural size 

 and enlarged. 



