35 s Mr. Home's Description of the Anatomy 
The heart and lungs, both in their structure and relative 
situation, resemble those of the paradoxus, with the exception of 
the heart having only one vena cava superior, instead of two. 
The diaphragm is similar to that of the paradoxus. 
The oesophagus is small, but has several longitudinal folds, 
which render it capable of dilatation ; it is lined with a strong 
cuticle, which is continued down to the cavity of the stomach. 
The stomach is a thin membranous bag, nearly of the shape 
of the human stomach ; in its collapsed state, it measured 4-J 
inches in length, and 3 inches in breadth. 
Its internal membrane is smooth, and without the appearance 
of glands, except towards the pylorus : it is lined with a cuticle ; 
and the glandular part has horny papillae, JL of an inch long, 
which appear to be the excretory ducts through which the 
gastric juice is conveyed into the cavity. This uncommon ap- 
pearance is represented in Plate XI. 
Similar cuticular papillae are to be observed in the paradoxus ; 
but they are so extremely small as to require a particular exa- 
mination to detect them : the stomach of that animal also 
appears to be lined with a thin cuticle. 
Along with the food, a quantity of sand is received into the 
stomach, and passes down through the bowels ; it was met with 
in different parts of the small intestines, and also in the colon ; 
it was very fine, and of a white colour. 
It is deserving of observation, that in this animal, the mode 
of managing the food is different from that employed in the 
paradoxus ; which accounts for the difference in the appearance 
both of the teeth and stomach. 
In this species, the food is bruised between the teeth placed 
upon the tongue .and those of the palate; and, immediately after* 
