125 
and describes it as being from 2'4 to 2:8 mm. long by 45 to 50 p 
broad, body filiform, terminating posteriorly i blun 
point furnished with bristles; cuticle striated longitudinally. 
In one sore he found, on dissecting the superficial part, five 
examples of a larva which he calls the “inconstant parasite. 
This is described as being 900 p long by 25 p broad, cuticle 
smooth, anus at the base of the tail, and vulva at the posterior 
third of the body. 
. Raillie& draws attention to the occurrence of cutaneous 
lesions in which larvae have been found, but which differ from 
the "constant parasite’ of Descazeaux. He recalls that Ercolani 
et with embryos of a Nematode in a horse on w ich were 
found “umbilicated crusts” about 1 cm. broad and very 
t 
et in 
oedematous plaques which somewhat resembled the lesions of 
dourine. These embryos measured 80 to 90 p long by 35 
to 4 u broad. Buffard believed these to be the embryos of 
Filaria papillosa (Setaria equina), but Railliet shows that he 
was mistaken. 
Railliet believes that the embryos found by Ercolani and 
ard are embryos of Zabronema. E 
Further, Railliet believes that the *inconstant parasite 
: x i larval stage of Habronema, resem- 
bling stage 2 of H. muscae, as described by Ransom. 
‘summ 
