‘ig. 11. 
Fig. 
ig. 10. 
ie. 13. 
lee 
ig. 15. 
Gy 
rf 
DR. J. MURIE ON THE ANATOMY OF THE WALRUS. 
PLATE LIII. 
g. 8. Dorsal surface of left pectoral limb and parts adjoining. sh. Shoulder-folds. 
Ax. Axillary margin. J, LJ, III, IV, V, Digits, numerically lettered. 
. 9. Under surface of the same limb. Wp. Warty pad. A line cutting the arrows 
a, b, defines posteriorly the area of sole which touches the ground in walking. 
Other lettering as in fig. 8. 
Upper surface, right hind limb, the digits approximated and partially over- 
lapping. The numbers refer to the digits respectively. 
The same limb, seen with the sole twisted backwards as in the act of swimming. 
The foot from the heel thus appears alone free. ¢. Tail enveloped in the 
skin, which stretches outwards towards the heel. Wp. Calcaneal rugose 
pad. J, LI, LI, IV, V, Digits. 
The above four figures are accurate copies from photographs, and 35 nat. 
size. 
PLATE LIV. 
. View of the buttocks and pelvic limbs, from behind, to show the lozenge-shaped 
skin-markings over the sacro-caudal region. This reduced representation is 
from a photograph taken of the dead body; the feet having been propped 
into a walking position, are therefore not quite natural in their posture. 
Ito V. The digits of the right foot. ¢. Tail. a@,f. Anal fold of skin, &e. 
Sketch of the anal region, from below, the legs being thrust at right angles 
outwards, and here indicated merely by a faint line as far as heel on right 
side. About three-fifths natural size. af. Anal fold, which overlaps and 
hides the anal aperture. ¢. Tail. g. Points to the cutaneous glandular patch 
of the right side situated near the groin. 
A reduced representation of a middle of the abdomen, giving the relative 
situation and appearance of the skin-folds around and between the umbilicus 
and genital orifices. wm. Umbilicus. a.p. aperture of penis. 
Longitudinal mesial section of the lobulated kidney. a. Renal artery. v. Vein. 
u. Ureter. 
Foreshortened view of the truncated tip of the penis, of natural size. Os*. 
Termination of the os penis, overlaid with mucous membrane. g. The 
roughened folds of the glans. s. Sulcus partly encircling the bone. m.w. 
Meatus urinarius. 
Urino-generative organs as dissected, and considerably reduced from nature. 
u.B. Urinary bladder, in part. wu. Ureter. /. Lateral ligament. v.d. Vas 
deferens. J.c. Ischio-cavernosus, and 2.c. Bulbo-cavernosus muscles.  ¢.c. 
Corpus cayernosum. ¢.s. Corpus spongiosum. 0s. Os penis, and os* its 
