428 
Sclerostomes of the Horse 
(Text-fig. 4 B) it appears almost at right angles to the longitudinal axis 
of the body. The dermal collar is enormously developed and com¬ 
pletely surrounds the genital cone, in consequence the prebursal papillae 
Fig. 3. Posterior extremities of females, viewed from right side. A. T. intermedins 
Sweet. B. T. tenuicollis sp. n. C. T. brevicauda sp. n. an. anus. int. intestine. 
v. vulva. x 75. 
have become greatly elongated. The rays of the bursa resemble those 
of T. intermedins, the tips of the ventral rays are however slightly more 
divergent. 
