340 



ZOOLOGY. 



Order 3. LinguatuUna. — This group comprises remark- 

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

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



Fipr- 303.— Jfi7nesium iardigradum, X Fig. 309.—Pentastoma taenioides. 



120 times. I. mouth-parts; 6, alimentary Katural size. — From Yerrill. 

 canal; ov, ovary. — After Doyere. 



Fig. SW.— Ixodes aZftipfcfits from a partly 

 domesticated moose. The tick natural 

 size, gorged with blood, and its six-legged 

 young, much enlarged, a, beak or man- 

 dibles armed with teeth ; b, maxilla, and 

 c, maxillary palpus; d, a foot with sucker 

 and claws, enlarged. 



Fig. 311.— Ixodes bovis. Natural size 

 and enlarged. 



