ANATOMY OF THE CALIFORNIAN SEA-LION. 227 
There are four mamme, abdominal in position. The posterior pair, situated about 
2 inches from the middle line, are 5-75 inches in front of the opening for the penis; 
the anterior ones, which lie about 3 inches from the middle, are 10:25 inches in front 
of these, 
There is no true scrotum; but a bare patch of dark, rugose skin surrounds the anus 
for about 4 inches each way. This did not in the least hang down; neither did the 
testes project into it at all, though possibly at certain times of the year they may 
descend into this sort of rudimentary scrotum, or the descent may even be regulated 
by the condition of the animal. 
No such distinct, Balewnoptera-like pectoral plaits of skin as those figured by 
Dr. Murie in Otaria jubata (I. c. pl. \xix. fig. 7) could be made out here. There a few 
indistinct lines of folding in the region of each axilla; but their presence seems due to 
the “lie” of the hairs, and not to any real growing or elevation of the skin, their 
situation probably depending on the position of the body. 
No underfur could anywhere be found. The skin itself, where hair-covered, is pale 
flesh-coloured. 
The following description of the pelage was taken from the animal as it lay, after 
having been thoroughly dried for a day or two. 
The general tint is dark umber-brown, darkest and blackest on the neck, brownest 
on the back, and lightest on the chest. The muzzle is lighter brown. On the chest 
and pectoral limbs the coat is very glossy; on the pelvic limbs it is less so. The hairs 
of the head and neck are chiefly deep black-brown, tipped with pale brown; mingled 
with these are numerous white ones, which are most numerous on the sides of the 
head, and on the sort of crest along the top of the head, the hairs here being rather 
longer than elsewhere. The space round the eyelids is slightly reddish ; and there is a 
pale spot above the eyes. Between the eyes the hairs are shorter, and of a reddish- 
brown colour. The eyebrows are represented by three, or, on the right side, two small 
curved hairs of pale colour, slightly marked with darker; the median hair is much the 
longest. Round the nose the hairs are brown and dirty white. The sides of the face 
below and above the lips, as well as the chin, are pale rufous-brown; but the margins 
of the lips themselves are everywhere dark. In the region whence the whiskers arise 
the cheeks are mottled with dark brown and dirty white hairs. The whiskers are 
about thirty-five in number on each side, arranged pretty regularly in six horizontal 
rows. The uppermost row of these contains only three whiskers, all small and short ; 
but below and posteriorly they increase in size and number. The longest row has 
about seven whiskers. The greater part of the whiskers are white, including all the 
longer ones ; but some three or four on each side are blackish. 
The ears are covered with shorter, dirty white and grey hairs. Behind the shoulders, 
along the back and upper parts, the tips of the hairs get lighter brown ; and mixed with 
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