1 66 ANATOMY OF THE SALIVARY GLANDS IN THE CARNIVORA 



the ridge. A rather large one was found once close to that of the 

 parotid, to its lateral side (Fig. 2, 14). In one specimen examined 

 in serial sections, about half a dozen were found, the majority in the 

 caudal portion of the ridge, ental to the buccinator. One opened into 

 the duct of the first orbital close to its orifice. 



The inferior alveobuccal glands have a common connective tissue 

 investment which unites them into a gland mass of considerable density, 

 in which the individual elements are not easily distinguished. The 

 series extends from the disastemal fold to the masseter muscle and 

 facial vessels, here ascending dorsad, but not to such a degree that it 

 can be said to approach the parotid, from which it is separated by a 

 wide interval in all of our specimens ; in none of them was the termi- 

 nation of the parotid duct embedded in small glands as Mivart shows 

 it. The mass increases in size caudad ; at the diastemal fold it is 

 narrow, thin, and of looser structure. The ducts, 20-30 in number, 

 open in two somewhat irregular rows upon a ridge midway between 

 the margin of the lip and the fundus of the alveobuccal sulcus. The 

 bodies are covered ectally by the facial platysma. 



Illing has given a detailed description of the glands of the alveolin- 

 gual region of the cat, with which in the main our results are in agree- 

 ment. 



The body of the submaxillary (Figs. 3 and 4, 20), ellipsoidal in shape, 

 and of firm texture, is placed ventrad of the parotid with which it is in 

 contact, and by which it may be partially overlapped. In our figure 

 the body of the submaxillary has been slightly depressed, to expose the 

 sublingualis major. In front of the parotid it is in contact with the 

 masseter muscle. Superficially it is crossed by the temporo-maxillary 

 (j6) and common facial veins (jj). which unite near its ventral border to 

 form the external jugular (jg). Two lymphnodes are regularly found 

 at the sides of the common facial vein (2y) ; they were taken for 

 accessory submaxillary glands by Mivart. By its deep surface the sub- 

 maxillary is in contact with the digastric muscle and the greater sub- 

 lingual gland, which separate it from the muscles of the tongue and 

 phar^aix. At the hilus there may be a deep horizontal incisure (Fig. 4). 

 The duct (21), single at its emergence, passes between the mandible 

 and the digastric muscle, crossing the body of the sublinguaHs major 

 ventrally, as it ascends to the caudal border of the mylohyoid. It is 



