228 MR. W. A. FORBES ON THE EXTERNAL CHARACTERS AND 
them are numerous entirely pale-brown ones; so that in these regions the general colour 
of the coat becomes much lighter, inclining to a mottled yellowish-brown tint. 
The sides of the neck are darker in colour than any other part of the body, the hairs 
here being very deep black-brown, with very few pale ones intermixed. These latter 
hairs increase in number towards the head, whilst posteriorly the hairs get shorter, 
paler, and more tipped with yellow, so that the dark colour of the neck passes gradually 
into the greyer tint of the head and the browner hue of the back. 
On the flanks, belly, and lips the yellowish-brown hairs and tips disappear, and the 
general colour in consequence becomes a dark rich brown, with a vinous tinge in some 
lights, particularly observable on the anterior parts of the pectoral limbs. The tail is 
rich brown in colour. On the chest and between the pectoral limbs the hairs become 
much shorter and yellowish-grey in colour; but both the shortness of the hair and the 
colour are, I believe, accidental, caused by the wearing-away of the hairs here by the 
animal’s position when in repose. 
The pectoral fins (Pl. L. fig. 1) are above covered with closely appressed, short hairs, 
which are black for the greater part of their length. There are no light-tipped hairs 
at all on the “ fin” below the humerus. The thickened convex radial margin, from 
halfway down the first metacarpal for a breadth of about an inch, as well as the ulnar 
side from two inches above the last nail, are naked; the line of hairs runs along some 
little way proximad of the nails, leaving the rest of the “fin” naked. Below, the flippers 
are quite naked from a transverse line extending across a little proximad of the carpal 
joint ; the bare skin is marked by numerous, subparallel, wrinkle-like lines. 
On the hind limbs (PI. L. fig. 2) the hairs extend above along the ridges of bone nearly 
to the nails; the margins for some way, as well as the skin between and below the 
nails, are naked. Beneath they are naked from nearly the base of the free part. 
The accompanying Plate (XLVIII.) represents to the right the male specimen from 
the Southport Aquarium, from a drawing by Mr. Smit, taken from the animal when 
thoroughly dried. The attitude and position, however, are from a sketch made by him 
of the adult specimen of the same species at the Brighton Aquarium, taken a few 
weeks before its death. The figure to the left represents the female specimen at 
Brighton, and is also taken from life; it represents the animal, however, when wet. 
The smaller size and different coloration of this sex are well shown in it, as well as the 
difference in the contour of its head, due to the non-development of the great sagittal 
crest, which is such a conspicuous feature of the male. The small distant figure in 
the same Plate represents the male animal with its coat wet. On the second Plate 
(Pl. XLIX.) the head of the male Southport specimen is represented of half the 
natural size. 
As regards the visceral anatomy, it, as might have been expected, conforms closely to 
that of Otaria jubata, with some few minor differences. I did not examine the brain, 
which is now mounted in the College of Surgeons’ Museum. 
