IN THE ORNITHOEYNCHUS PARADOXUS. 147 
the alveolar cavity, into which they are received, is lined 
throughout by the true dermis ; they are simply analogous 
therefore to cuticle, horn, &c., and have nothing osseous 
in their composition. 
The salivary glands need not detain us long. The paro- 
tid has been already described. The only other salivary 
gland which I remarked, was the maxillary, situated on 
either side, over the great nerves and bloodvessels, high in 
the neck, and close to the lower jaw. From this there pro- 
ceeded a long canal passing over and through the muscles 
going to the tongue, and running parallel to that organ ; 
near its termination it becomes very zigzag, and diminishes 
in caliber ; it pierces the membrane of the mouth at the 
sides of the anterior portion of the tongue, and near the 
union of the branches of the lower jaw-bone. These 
maxillary glands are large, but not remarkably dispropor- 
tioned to the size of the animal^ as is said to be the case in 
the Echidna, in which animal the parotids are wanting. 
It could scarcely be interesting to the Society to detail 
the observations made on the muscles of the tongue, palate, 
and of those connected with the os hyoides^ as it would be 
but a repetition of what has been already so well described 
by M. CuviER, The larynx itself is composed of the usual 
cartilages and muscles, sufficiently distinct ; the epiglottis 
and arytenoids are well marked, and I thought the thyro- 
arytenoids rather strong : the glottis is formed partly by 
the arytenoidei cartilages, and partly by the true vocal liga- 
ment ; between which and the superior margin of the cri- 
coid cartilage there is a considerable cavity or ventricle. 
Immediately above the vocal ligament and thyro-arytenoi- 
dei muscles, a small ligamentous and partly muscular cord, 
stretched from the base of the epiglottis to the anterior part 
of the arytenoid cartilages, running parallel with the true 
vocal cords, and immediately outside this, is a much lar- 
