and Teredo Navalis , 283 
ancl the space between their termination and the ends of the 
small tubes the remaining third. 
In tracing the intestinal canal from the mouth, the oeso- 
phagus is found to be very short, and lies on the left side of 
the neck. On the right side are two large glands near each 
other, connected with its coat. The oesophagus gradually 
swells out and becomes stomach, which to external appear- 
ance is a large bag, extending the whole length of the abdo- 
men, and the intestine begins close to the termination of 
the oesophagus: but when the stomach is laid open, there is 
a septum dividing it into two distinct bags, except at the lower 
end, where they communicate. It may therefore be said to 
be doubled on itself. In those worms, which were examined 
alive, the stomachs were quite empty, but in some preserved 
specimens the contents were a yellow coloured pulp ; and the 
quantity in that of the specimen from the British Museum 
was about 10 grains. This pulp was examined by Mr. 
Hatchett, who considers it to be undoubtedly, an impalpable 
vegetable sawdust : since when burnt the smoke had precisely 
the odour of wood, and it formed a charcoal easily consumed, 
and was converted into white ashes in every respect like 
vegetable charcoal. Solution of potash did not act upon it, as 
it would have done had it been an animal substance. 
The intestine is extremely small in size ; it dilates into a 
cavity, containing a hard white globular body, of the size of 
a large pin's head, and then makes a turn upon itself. At this 
part the liver is attached to the stomach, and adheres so 
firmly as to be with difficulty separated. The gut passes 
forwards, till it reaches the central line of the stomach, just 
, opposite the septum, and continues its course along that viscus, 
