t 269 ] 
beautiful, of a lively whicUli colour, Interfperfed with 
innumerable very fine ramilications of blood veffels, 
running from the margin of the plate into larger and 
larger branches, until the fight of them is at once loft 
by their entering the body of the animal. 
, “ The under, or belly plate, or rather Jlemum^ is of 
a fair whitifti colour, and extended forward two or 
three inches more than the back plate, fo that the head 
refts on it very conveniently. The hind part of this 
plate is hard and bony, ftiaped very much like a man’s 
tiding faddle, with two pieces for the thighs to reft 
on. The fore part of the plate is pliable and carti- 
laginous. 
“ The head is fomewhat triangular and attenuated, 
rather apparently fraall for the animal, but growing 
gradually larger towards the neck, which is thick and 
long, and eafily extended out (the neck of the pre- 
fentfubjedl was thirteen inches and a half long) to a 
great length, or drawn back again under the ftiell 
or plate. 
“ The eyes arc placed In the fore and upper part of 
the head, near to one another, having pretty large 
loofe palpebrae. The pupil is fnall and lively, fur- 
rounded by a lemon-coloured /Vir, perfedlly round, 
and giving much life and fire to the eyes. When 
danger approaches, or when it goes to fleep, it 
covers its eyes, by bringing the inner and loofe part of 
the lower palpehra over its eye, like a viembrana 
nibiitans. 
“ The upper lip and under lip are both large, but 
efpecially the upper. The mandibula are both entire, 
each being one entire bone all round, of the fame 
Ihape as the mouth. 
5 
“ The 
