ANATOMY OF THE SALIVARY GLANDS IN THE CARNIVORA 1 63 



Occasionally there is a ventrally directed tongue-like process, 

 which crosses the posterior auricular vein and overlies the submaxillary 

 gland. An elongated lymphnode is placed at the caudal border of the 

 gland (26), and a second smaller one at its cranial border (25), usually 

 dorsal to the duct. These nodes were considered to be portions of 

 the parotid by Mivart (The Cat, Fig. 88). 



The deep surface of the gland presents a vertical ridge between two 

 concavities. Of these the narrow cranial one corresponds to the 

 masseter and temporal muscles, the caudal to the external auditory 

 meatus. 



The duct emerges from the ventral angle of the gland, usually in 

 two or several divisions, which unite in the caudal half of its course; 

 rarely it is single at its emergence. Its course, which is horizontal, 

 may be designated as transmuscular in contrast to the inframuscular 

 position which it has in the early stages of development. At the border 

 of the masseter the duct enters the angle between the deep and super- 

 ficial facial veins ; under cover of the latter it pierces the buccinator 

 obliquely and reaches its orifice at the cranial end of the stomal ridge, 

 ■ opposite the last cusp of the carnassial. The promasseteric segment 

 of the duct is short, in correlation to the brachycephahsm of the cat. 



In the transmuscular portion of the duct accessory lobules are fre- 

 quently present, (a) ventral to the midthird of the duct and closely 

 applied to it, (b) near the ventral border of the masseter opening by a 

 slender ascending duct into the parotid duct close to its bifurcation. 

 The former of these (Fig. 5, 6) corresponds to the facial gland of Mivart. 

 It is horizontally placed immediately ventral to the parotid duct, into 

 which its single duct opens directly. It is ovoid in shape, its horizontal 

 diameter about double its vertical. It was present three times in five 

 adult cats. Its size varied between 2 X i millimeter, and 10 X 5 milli- 

 meters. The second element (Fig. 5, 7) is minute in size, a flattened 

 disk about 2 milUmeters in diameter. It is situated on the surface of 

 the masseter near its lower border. The minute duct ascends nearly 

 vertically, in some cases inclined slightly caudad, to join the parotid 

 duct close to the ventral angle of the gland. It was present five times 

 in five specimens examined. Its position suggests that it may be a 

 branch of the parotid duct which retains the inframuscular position 

 in some degree when the main duct is shifted dorsad. Two similar 



