Macalister — On the Anatomy of Clueropm Liheriensis, 495 
Inches . 
Length, 22-5 
Height at shoulder, M b 
• » „ hip, 12-0 
Girth at back of shoulder, . . 22-5 
„ „ front of thigh, . . . . 23-5 
Length of head from snout to 
front of the ear, . . . . . . 4-60 
Inches. 
Width between eyes, 3-0 
Length from eyes to ear, .... 2*0 
Length of fore leg, . . 4*0 
Length of hind leg, 4*5 
Length of rictus of mouth, . . 5'0 
Breadth across angle of mandible 4*25 
The skin is dark brown with a light reddish tint, hairs are only- 
present at the base and within the cavity of the concha auris, as well 
as on the muzzle, where they are stiff, and a few scattered softer hairs 
exist on the body. 
The head is small, the face shorter than in the common hippopo- 
tamus. In the adult the eyes are midway between the occiput and the 
snout. The toes are united by a membrane. 
The other points of importance in its osteology are so carefully 
detailed in Milne Edwards' paper that I need not recapitulate them 
here. My specimen showed the same arrangements as far as they could 
be noticed in a young specimen. The vertebrse were seven cervical, 
fourteen dorsal, five lumbar, four sacral, at least ten caudal, six 
sternebers in the sternum, and a wide xiphoid cartilage. There 
was no ligamentum teres in the hip joint. 
In the splanchnology of this young specimen there were some very 
interesting features ; the heart was wide, short, and with a closed 
foramen ovale, a small Eustachian and rudimental Thebesian valve. 
The right superior vena cava is large ; a very fine vein, joining the left 
innominate at its origin to the coronary, was the only trace of a left 
superior vena cava ; the right vena azygos was large, the left small, 
both arch over the bronchi and end in the two superior cavse ; there 
were no valves in the left or right renal veins. The aorta gave off 
from its arch an innominate artery, which soon bifurcated ; one branch 
being the left carotid, the other being the common stem for the right 
carotid and right subclavian. The left vertebral and left carotid arose 
separately from the aortic arch. The superior mesenteric and coeliac 
axis came off as a common trunk, and there was an inferior mesenteric ; 
the internal and external iliacs arose at one point by a very short 
common trunk on each side. I could find no caudal glomeruli or other 
trace of the coccygeal gland. There was a single axillary artery ; no 
retia in the upper limb, nor in the neck. The common carotid bifur- 
cated at the lower edge of the larynx. The inferior vena cava was 
thick- walled above the liver ; having pierced the diaphragm, it was 
directed forwards for a short distance, about an inch and a-half, then 
ascended, pierced the pericardium which, as in the walrus, was not 
attached to the trilobate single cordiform tendon of the diaphragm, 
and finally ended in the right auricle. There was a very high bifur- 
cation of the right bronchus, forming very nearly a median tube. The 
stomachs were four, and as usual ; the intestine was thirty-two feet 
long, and was not provided with a coecum. The choledic duct opens 
