492 PROF. W. H. FLOWER ON THE [Nov. 11, 
Between the scrotum and the tail is a considerable eminence, 
occasioned chiefly by the immense anal glands. Upon this is a large 
T-shaped aperture; the upper transverse part, 17" in width, leads 
to a great follicle rather more than an inch deep. Within the lips 
of the lower, longitudinal part of the opening is placed the anus. 
The prostate (fig. 10, p) is large and flat, projecting very consi- 
derably on each side of the urethra, concave from side to side on its 
under or rectal surface, and with both anterior and posterior mar- 
gins, though especially the former, notched ; so that the whole gland 
Organs of generation, inferior surface; half the natural size. 
a, Ureter. ud. Vas deferens. p. Prostate. cg. Cowper's gland. ¢. Erector 
penis muscle. 7. Retractor penis muscle. 
