THE PACA OF BRAZIL 
rate orifices, in the same valvular recess with the vasa defe- 
rentia. The vesicula seminales had no peduncle whatever, 
but continued broad and lobed to their termination in the 
urethra, although, in the Agonti, they terminate each in a 
long duct, before reaching the urethra. Daubenton took 
from the urethra of the Agonti a long firm white substance 
with a shining fracture, which appeared to be formed by 
the hardened matter of the vesiculse seminales ; nothing si- 
milar existed in the urethra of the Paca. The two pro- 
strate glands lay on the opposite sides of the neck of the 
bladder, and below the terminations of the vesicideE semi- 
nales. They formed two very soft broad glandular expan- 
sions, of a flesh-red colour, and appeared as if composed 
of several long narrow glands attached to each other. 
These glands opened directly into the urethra, at the same 
place with the seminal ducts. As the fringed margins of 
all these ducts projected freely into the valvular recess of 
the urethra, their openings were protected by a double val- 
vular apparatus, from any objects passing along the ure- 
thra. Two regular pear-shaped glands, which have been 
met with in a few other animals, but whose use is still un- 
known, were placed on the sides of the rectum, and in con- 
tact with the last caudal vertebrae. The glands were about 
half an inch in length and breadth, of a dark-grey colour, 
very soft, and contained a thick grey coloured fluid, which 
was conveyed by two separate ducts, more than an inch 
long, into the urethra, at the lower and fore part of the 
bulb. These glands had a loose cellular internal texture, 
and their ducts entered the urethra at the distance of two 
inches from the openings of the seminal ducts. The penis 
measured 5 inches from the bulb of the urethra to the point 
of the dans, from the bulb to the entrance of the seminal 
ducts S inches, and these ducts entered the urethra about 
an inch from the neck of the bladder. The glans penis was 
