FEATHER-LICE INFESTING TURKEY, ETC. 127 
most hair-like. The head and thorax of this parasite, illus- 
trated in fig. 106, is bright reddish-brown; the abdomen 

Fig. 106.—Biting-louse of pigeon. Greatly enlarged. Original. 
is dusky with a series of bright brown patches. It measures 
about 2mm. in length. 
Colpocephalum longicaudum Nitzsch. 
This feather-louse is also described as a parasite of the 
pigeon, but seems to be uncommon, at least in the United 
States. 
FEATHER-LICE OF PEACOCK, GUINEA-FOWL AND 
DURKEY. 
Goniocotes rectangulatus Nitzsch. 
This is a small parasite with a squarish head rounded 
in front, and with a short and oval abdomen. It is a quite 
common inhabitant of the feathers of the peacock. 
Goniodes falcicornis Nitzsch. 
This parasite of the peacock is quite large, measuring 
