DISEASES OF POULTRY. 287 



other species of goniodes use the first and third joints of 

 the antennae with great facility, acting the part of a 

 finger and thumb. 



" Goniodes dissimilis (Louse of the Domestic Fowl). 

 I suspect this species is of rare occurrence. 



" Lipeurus variabilis (Louse of the Domestic Fowl). 

 Common on the domestic fowl, preferring the pri- 

 mary and secondary feathers of the wings, among the 

 webs of which they move with great celerity. 



" Lipeurus polytrapezius (Louse of the Turkey). r 

 A common parasite upon the turkey. Their mode of 

 progression is rather singular, as well as rapid. They 

 slide as it were sideways extremely quick from one side 

 of the fibre of a feather to the other, and move equally 

 well in a forward or retrograde direction, which, 

 together with their flat polished bodies, renders them 

 extremely difficult to catch or hold. I have observed 

 that where two or more genera infest one bird, they 

 have each their favorite localities ; for while the 

 Goniodes stylifer will be found on the breast and neck 

 of the bird, the Lipeurus polytrapezius will be congre- 

 gated in numbers on the webs and shafts of the primary 

 wing feathers. 



" Menopon pallidum (Louse of the Domestic Fowl). 

 Found in great abundance on poultry, running over 

 the hands of those who are plucking fowls, and difficult 

 to brush off, from the smoothness of their bodies." 



Those who are desirous of fuller information should 

 consult the work itself. 



LOSS OF FEATHERS. 



IT has been observed, that all birds kept in a state of 

 confinement, are particularly subject to an extensive 

 loss of feathers, rendering them naked and deplorable. 

 This is altogether different from moulting, inasmuch 

 as the fall of the feathers in the latter is occasioned 

 by the new ones, shooting out from the skin, and 

 pushing the old ones off, as is the case when young 

 animals shed their teeth. In the disordered state in 

 question, on the other hand, where the feathers fall, no 

 new ones appear, or if they do, they seldom push far 



