C. Warburton 
293 
$ 408-440 /X x 330-380/>t; very short oval; abdomen (at first) as large as 
cephalothorax; rostrum with very broad carinate cheeks, filling the interval 
between legs 1 and head; dorsum mammillated; transverse tocostome just 
behind epimeres of legs 2; legs reduced to short conical stumps without 
ambulacra. 
This sarcopt has been known for a long time on domestic fowls and other 
Gallinaceae and on game birds. It has also been observed to infest small 
birds in aviaries. It burrows under the scales of the legs and causes large 
spongy crusts which are full of the mites. 
Note the absence of “cheeks” in the d, and the presence of very broad 
well-developed cheeks in the $. 
Text-figure 10. Cnemidocoptes laevis var. gallinae, <$ x 200 (after Railliet). 
C. laevis Railliet, 1885. 
Railliet (1895, p. 664) describes it thus: 
Rostrum broad, half covered by the epistome; oval, without cheeks; 
genital armature between legs 4; two copulatory suckers one on either side 
of the anus. 
? rounded; abdomen a little larger than cephalothorax; cheeks as in 
mutans ; dorsum regularly striate, without mammillae; tocostome faint; legs 
as in mutans. 
This species causes “body” or “depluming” scabies, and was first found 
on a carrier pigeon from Brussels. Railliet says it appears in poultry yards 
in consequence of the introduction of infested fowls and quickly invades the 
whole run. It usually begins on the rump and spreads to thighs, back and 
belly, and the feathers fall off. The fowls do not usually suffer much in health, 
