lyo ANATOMY OF THE SALIVARY GLANDS IN THE CARNIVORA 



close to the symphysis, the submaxillary mesal, the greater sublingual 

 lateral. The lesser sublinguals are present (i8) in the ventral part of 

 the arcus palatinus and the adjacent portion of the alveohngual gutter, 

 and lie dorsal to the large ducts. They are continuous with the isth- 

 mian glands. 



CANIS FAMILIARIS 



The stomal ridge is well developed, extending from the second cusp 

 of the upper carnassial sagittally to a point just caudad of the maxil- 

 lary tuberosity, then turning obliquely caudad and mesad to be lost 

 in the trigonum glandulare. The orifices of the parotid and seven 

 or eight orbital glands are conspicuous, and give the crest of the fold 

 a serrated appearance. The parotid opens opposite the second cusp 

 of the carnassial at the cranial extremity of the fold. Its duct passes 

 laterad through the buccinator and turns almost at right angles 

 caudad, a conformation that renders the introduction of a canula a 

 little troublesome. The duct has a longer promasseteric course than 

 in the cat ; close to the border of the muscle it passes between the deep 

 and superficial facial veins. Its transmuscular portion is sUghtly 

 obUque, ascending from the ventral angle of the gland to its orifice. 

 The body is triangular, of the same general shape as in the cat, but of 

 less compact structure and with more produced angles. The inferior 

 is prolonged ventrad and overhes the body of the submaxillary. It is 

 especially loose in structure, and manifests a tendency to resolve 

 itself into lobules more or less independent of the rest of the gland 

 (Tig. 7, 5). The duct may be single at its emergence, or in two or 

 several branches. Accessory lobules are frequent in the middle third of 

 its course. I have not seen them exceed 2 centimeters in length nor i 

 centimeter in breadth. In five dogs examined with reference to these 

 lobules, their presence was noted seven times ; five were dorsal, two 

 ventral to the duct ; in one case both a ventral and a dorsal lobule 

 were present on the same side. All were dense in structure, with 

 smooth surfaces ; their very short single ducts opened into that of the 

 parotid almost at right angles. An orbitoparotid was not found. 



The orbital mass is relatively much larger than in the cat, and owes its 

 size in the main to the hypertrophy of the first member of the series (9) . 

 This is a bulky lobulated gland, the duct of which emerging ventrally 



