I 
1888-89.] Woodhead and Gray on Stomach of Narwhal. 797 
of the lower end of the oesophagus with a lateral diverticulum. In 
this connection we may quote Home’s description of the stomach of 
Delphinus delphis, where he says — “ The first stomach lies in the 
direction of the oesophagus, which is continued into it There 
is a canal, between the first and second cavities, 3 inches long, 
which opens into the second by a projecting orifice, and the cuticular 
covering of the first stomach terminates immediately beyond this 
orifice, which is 2J inches in diameter.” This certainly bears out 
the theory that the so-called first cavity, with its lateral diverticulum, 
is merely a modification of the oesophageal tube ; in the Narwhal 
and in most others of the Delphinidse, at and near the extremity of 
the tube, but in Home’s porpoise at some little distance from the 
extremity. 
Fig. 2. 
We may here again mention the distinct line of demarcation 
between the squamous epithelium of the oesophageal cavity and the 
glandular secreting epithelium of the first true digestive cavity 
(%• 2 ). 
Those observers who have looked for the salivary gland in the 
whale have failed to find anything more than a mere rudiment, 
though Morrison Watson and Young say that in the Beluga which 
they examined, they detected an apparently glandular body which 
occupied the usual position of the submaxillary gland. They 
could, however, find no duct, and the parts were not well enough 
preserved to allow of any very accurate observations being made. 
Macalister* could find no trace of a salivary gland in Globiocephalus 
Proc. Zool. Soc., 1867, p. 480. 
