416 DR. J. MURIE ON THE ANATOMY OF THE WALRUS. 
As previously ascertained, the Otaria was a foot shorter than the above length, no. 1. 
With no. 2 there was a corresponding diminution; but as respects no. 3 the Otaria 
was relatively the longer of the two. The measurements 4 & 5 cannot satisfactorily be 
compared. The increment of nuchal length in the latter tallies with the impression the 
eye perceives, namely that the Walrus isa more bull-necked Pinniped than the southern 
species of Eared Seals. 
Fig. 1. 
Trichechus rosmarus, 3 , Juv. 
4. Skin-folds.—A notable peculiarity in this young animal, and one which Dr. Gray, 
on seeing the creature, specially desired should be, if possible, photographed, was the 
curious wrinkled condition of the skin. The remark of many was that nature had 
provided too big a coat to fit the body comfortably, and hence creases and folds 
innumerable, along with the roughened coarse hair, gave a much rougher shaggy 
appearance to the body than most published figures bring out. The cutaneous 
wrinkles and furrows varied in height, depth, and direction in the several regions of 
the body, and altered considerably according to the position assumed. Those of the 
head, neck, and limbs shall be specified separately in the respective descriptions of these 
parts. Of those of the body the accompanying woodcut (fig. 1) represents the general 
aspect as a whole, whilst figs. 8, 11, & 12, Pls. LIII. & LIV., also illustrate different 
portions as typifying the significant feature in question. Briefly, it may be said of the 
