604 
Rairuet’s and Henry’s opinion is correct. A more detailed description. 
of the male and female larvae and of the anterior extremity of 
young imaginal and of moulting specimens of Oxyuris equi follows 
here. 
The larval form. 
The length of the smallest specimens, observed by us, is about 
2.8 mm.; the diameter of these specimens is + 250 u at the level 
. Hania at, 
je ZS PARE 
Ad Le ? ee feet, *. 
<= EEN x0 RO 
---- ent. A DAL des ere 
ee OO A kle 
. Oe 
musc. ee”, 
iid etc: 
Here leut, 
Fig. 2. 
Fig. 1. Posterior extremity of a female larva, viewed from right side. Total 
length 6.11 mm., catch N°. 37. TD: 
Fig. 2. Posterior extremity of a male larva, viewed from right side. Total 
length 4.93 mm., catch N°. 37. 120, 
