484 DR. J. MURIE ON SAIGA TARTARICA. [June 9, 
III. Viscerau ANATOMY. 
1. Vascular Channels. 
The heart, 4 to 44 inches long and 23 inches in diameter at the 
base, approaches more to the Antelopes’ and Deer’s in shape than to 
that of the Sheep. This arises from its being elongate, pyramidal, 
and taper pointed; for in the Sheep the apex is more blunt and 
obtuse. The deposition of fat around the basal end and on the 
pericardium is limited in quantity. A thin ossicle an inch long and 
‘2 inch broad at its middle, lay within the muscular substance, 
close to the aortic orifice, in the adult male. ‘The bone, as regards 
shape, was not unlike a diminutive broad first rib, one end being 
wider and twisted, like the costal head, the opposite extremity 
narrower, 
Fig. 9. 

Bone of the heart-—nat. size. 
A single superior vena cava and an inferior one enter the right auricle’ 
from above and below. The facial veins and arteries (see fig. 8). 
follow the distribution met with in Bovidee generally. 
That vasculo-glandular reservoir the spleen, as Pallas shows (/. e. 
p- 43, tab. iii. fig. 11 e), is adherent to the left upper side of the 
paunch, a couple of inches from the cardiac orifice. It is flat and 
broad, some 6 by 4 inches in diameter. 
2. Genito-urinary Apparatus. 
In the female the clitoris, the vagina, and the bicorned uterus, 
present no special features worthy of notice. The specimen exa- 
mined, a young half-grown animal, had imperfectly developed 
mammary glands, upon which were four teats. . 
In the male Saiga, Pallas curtly adverts to the testes, penis, and 
its preeputium ; but he omits reference to the prostate and Cowper’s 
glands, which are present. (Vide fig. 10.) 
The scrotum is subglobular, and rather sessile than pendent, As. 
Pallas observes, it is large—in the adult examined by me, equalling 
a small orange in size, and exteriorly covered by short white hairs. 
A considerable quantity of firm fat is imbedded within the scrotal 
sac, being deposited in greatest quantity at the root of the testes 
and around the cord. It forms indeed a septal division between the 
glands, and gives bulk to the scrotum. 
The cremaster muscle is developed as a broad band descending as 
low as to opposite the globus major. The strongly fibrous tunica 
vaginalis (¢. v. reflexa) is semitranslucent ; its visceral portion (t. vag. 
propria) is still more delicate, and the lower uniting fold (f) situated 
about *4 inch from the inferior end of the globus minor. 
