100 
Parasites of the Zebra 
A small oesophageal funnel occupies the anterior cavity of the oesophagus, 
the latter being almost cylindrical in shape and measuring 0-47-0*53 mm. in 
length with a breadth of 0-13-0-17 mm. 
Cervical papillae are situated 0*45 mm. from the anterior extremity. V 
Female. The tail is pointed; the vulva is situated 0-45-0*75 mm., the 
anus 0-15-0-2 mm. from the posterior extremity, the different measurements 
being due to the various degrees of contraction of the caudal region. 
Fig. i. Cylindro pharynx brevicauda Leiper. A. Anterior extremity in lateral view. K. Anterior 
extremity, dorsal view x 215. C. Genital cone and adjacent structures in the male, x about 
125. 
Male. As described by Leiper, the males of this species are characterised 
by the large genital cone, the latter is almost cylindrical (up to 0-4 mm. in 
length with a breadth of 0-17 mm.) and completely surrounded bv the dermal 
collar which, however, shows its greatest development on the ventral surface 
(Text-fig. 1, c). 
The appendages of the genital cone are quite peculiar, a pair of finger- 
shaped appendages with rounded ends occur just behind the genital opening, 
whilst an irregular number of delicate pointed processes are scattered over 
the dorsal surface of the cone (Text-fig. 1, c). 
