+s “_ 
The zostrils are seldom mentioned. It is evident that the animal 
is able to close them; they are, however, delineated (fig. 19, fig. 
24, fig. 36), or indicated with a crescentic mark (fig. 30), and 
mentioned to have been distinctly visible (118), and described as 
large (p. 130). It is also evident that when the animal opens them 
as wide as possible, the beak appears quadrangular, as is the mouth 
of cows and horses (p. 130). This comparison agrees with the des- 
cription of the nose sides or flaps which are here said to be “nearly 
semicircular flaps or valves overarching the nostrils, which were 
in front” (148). 
Of the whiskers PontoppipaN already tells us that on the sides 
of the nostrils there are a few stiff hairs or bristles, as other ani- 
mals have, with a good nose (p. 130). These whiskers are mention- 
ed afterwards only once: “on the nose there are thick hairs, as 
on a seal’s, two or three quarters of an ell long’ (103). Were 
these whiskers not seen by them who compare the head with that 
of a seal (8, 29), with that of a walrus (129), or with that of a 
sea-lion (36)? I believe they were, and that, through inadvertency, 
they are not mentioned in the reports. 
The mouth is transverse (56) and large (9, 56); it is rarely men- 
tioned, but once stated to have been distinctly visible (118); once 
it was estimated at fifteen imches (56) (I may ask: large, long, 
or when opened ?), and once we find the firm assertion that when 
open it looked like that of a serpent! (41). 
The eyes were not always seen; it may be that the distance was 
too large, or that the animal kept them closed (115, 128, 130, 
137, 146). They are mentioned as to have been only visible in 
31, 80, 101, 118, 126, 152, 158; but sometimes we get a short 
description. They are round (92, fig. 30), about the size of an ox's 
(48), about 31/; inches in diameter (102), about 5 inches in dia- 
meter (92), large (p. 131, 91, 122), large as a plate (82, 103), 
disproportionately large (36), broad (p. 225), very large (92), relat- 
ively large (112). We observe that the size of the eyes, when 
opened as wide as possible, has struck the observers; they must 
be disproportionately large. But if we wish to know the relative 
largeness, we have only to consult n°. 92 and 102, where the 
eyes are estimated at 31/, and 5 inches. On both occasions the 
observers estimated the head to be as long as a ten gallon cask, 
and about of the same thickness. As to the lustre of the eyes we 
read that: they are not glossy (103), generally, however, glossy 
(122), brilliant (p. 105), flaming (p. 105), sharp (44), very bright 
510 CONCLUSIONS. 
