BIRD-LICE (MALLOPHAGA). 



285 



the dog, may serve as a host for one of the Tapeworms that 

 infests the dog. The Bird-lice are often 

 very injurious to poultry : four genera are 

 common on fowls and chicks, namely, 

 Qoniodes, Gonioeotes, Menopon, and Lijie- 

 urus. These lice live upon the birds 

 permanently, — Goniodes and Gonioeotes 

 on the neck, under the wings, and on 

 the rump. Mcnopon is more active, and 

 wanders over the whole body : this is the 

 louse that crawls on to a person plucking 

 fowls, but soon dies. Lipeurus lives be- 

 tween the barbs of the wing - feathers. J,l^^lTK,'iJ^^"''l'^''"ol 

 These lice eat away at the base of the (p"mi'n'™°' "" '''"""'"'• 

 feathers, the skin, &c., and cause severe 



irritation. They stunt the growth of young chicks to a serious 

 extent, and prevent the birds taking nourishment and rest. 



Fig. 165. — JIalloptiaga or Bird-lice. 



1, Lipeunts varlcMlU. 2, Mcnopo-n pallidum. 3, Gonioeotes Uologaster. 



(All greatly enlarged.) 



One can usually detect the presence of lice on birds by the 

 barbs of the feathers, especially those of the saddle-hackle, be- 



