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XXV. On the Anatomy of some of the Organs of Deglutition 
in the Capybara (Hydrocherus Capybara). By John Morgan, 
Esg. F.L.S. 
Read June 15, 1830. 
Tus very great advantage which a zoologist derives from the 
study of comparative anatomy, in the systematic arrangement 
of the different genera and species composing the animal king- 
dom, must be acknowledged by every one who has turned his 
attention to this branch of natural science ; and it will therefore 
be unnecessary that I should offer any apology for presenting 
the Linnean Society with a paper upon a subject almost exclu- 
sively anatomical. | 
The details of my present communication may perhaps appear 
of trivial importance ; but as the dissections I have to describe 
are, I believe, entirely new, and as it is probable that the pub- 
lication of new anatomical facts (although insulated and appa- 
rently of little interest in themselves) may eventually form a 
groundwork for the more important discoveries of our successors, 
I am induced to lay before this Society a short account of some 
anatomical peculiarities hitherto undescribed, which I have met 
with in dissecting certain organs connected with the process of 
digestion in several species of the order Rodentia. It is now 
more than a twelvemonth since I examined the body of a Capy- 
bara, one of the largest animals of the order to which it belongs, 
and in which therefore I conclude that the prominent distin- 
302 guishing 
