240 MR. R. OWEN ON THE ANATOMY 
The prostate consists, as in other true Ruminants, of two separate, elongated, glan- 
dular bodies, placed on the outside of the vasa deferentia, and sending each a single 
duct to terminate with the vas deferens of the same side in one of the two deep lateral 
fosse which are seen upon the verumontanum. In the Camel the prostate forms one 
transversely elongated body, placed entirely behind the beginning of the urethra, and 
presenting in a slight degree only, the bilobed character. The Giraffe in this part of 
its structure agrees with the typical Ruminants: but in these the divided prostate offers 
several modifications of form. In the Bull, e. g., each lobe is an elongated body, dis- 
posed in a wavy figure, with irregular rounded projections from its sides. In the Goat 
the same part is simply elongated, and tapers somewhat towards the distal or free ex- 
tremity. In the Giraffe the prostate corresponds rather with the modifications which 
this gland presents in the Deer-tribe ; the distal extremity of each separate lobe forms 
a large round bulbous body, and the rest of the lobe diminishes towards the urethra. 
In the young males which I dissected these accessory generative glands were very small, 
the parenchyma dense, and the central cavity hardly perceptible. The lower extremities 
of these glands and the terminations of the vasa deferentia were included with the urethra 
in the commencement of the strong transverse muscle which surrounds the membranous 
part of the urethra. The length of this part was four inches, the thickness of the mus- 
cular stratum one-third of an inch. 
At the base of the bulb of the urethra are situated two Cowperian glands, each as 
large as a nutmeg, and surrounded by a special and dense capsule of muscular fibres. 
The parenchyma of these glands is less compact than in the prostate glands ; they have 
not a single cavity in the centre, but three or four sinuses convey the secretion to 
the duct, which terminates in the bulbous part of the urethra. A well-developed semi- 
lunar fold of membrane separates the dilated canal of the wrethra occupying the bulb 
from the preceding membranous part. The length of the compressores or acceleratores 
muscles surrounding the bulb, is three inches and a half: anterior to the large and 
normal acceleratores there is a smaller accelerator half an inch in length. The erectores 
muscles present the usual structure. The penis, when retracted, is bent, as in other 
Ruminants, into a sigmoid form, and the two retractores muscles associated with and 
producing this sigmoid retraction offer the ordinary position and attachments ; they’ 
expand to be inserted upon the sides of the corpora cavernosa near the base of the glans. 
The cavernous texture of the penis is not divided by a middle septum. The glans 
begins by a somewhat sudden expansion, and continues to enlarge to its distal extre- 
mity, which is smooth and rounded. The prepuce is reflected upon this extremity, and 
not upon the root of the glans, so that only a small portion of the glans is exposed 
by laying open the prepuce. The urethral canal does not open upon the extremity of 
the glans, but is continued forwards for an inch and a half attached to the inside of the 
prepuce, its parietes being merely membranous, and its extremity projecting freely like a 
membranous bilabiate tube, about a line beyond the inner surface of the prepuce. 
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