CRYPTORCHIDISM. 



239 



answered. Peters considers such animals not fertile, though quite 

 capable of coitus, ^^'esche, on the other hand, states having seen 

 fertile cr\'ptorchids ; he refers, however, to a case of cr\-ptorchismus 

 inguinalis. A final answer can scarcely be given. The animal's fertility 

 clearly depends on the development of the testicles. The great majority 



Fig. 251. — Transverse section in a perpendicular plane through the posteiior 

 abdominal region, together with a part of the supralumbar, iliac, and prepubic 

 regions (normal). 



PT. Peritoneum. P..\. Branch of prepubic artery, p. v. Branch of prepubic 

 vein. u..\.R. Upper abdominal ring. s.c. Spermatic cord. v.d. Vas deferens. 

 p.L. Poupart's ligament, turned downwards, the deep surface visible. L .\. Long 

 adductor of the thigh. l.i.f. Lumbo-iliac fascia. i. Iliacus. P..M. Psoas 

 magnus. t.p.p. Tendon of the psoas parvus, p. Pelvis, r. Rectum, bl. Bladder. 

 L.B. Lateral ligaments of the bladder with the obliterated umbilical artery. 

 O.A.I. Internal oblique abdominal muscle, c. Cremaster. c.T. Layer of con- 

 nective tissue which surrounds the upper border of Potipart's ligament, the 

 posterior margin of the internal oblique abdominal muscle, the cremaster, and 

 the peritoneum. 



of retained testicles certainly appear degenerated, and contain no 

 spermatozoa. Paugoue speaks of a stallion in which both testicles 

 were retained, and whose progeny numbered amongst them five cryptor- 

 chids or monorchids, thus apparently proving the condition to be 

 hereditary. 



