SALIVARY GLANDS OF LOWER PRIMATES OI 



of the lesser sublingual mass (j), above the mylohyoid, between it and 

 the musculature of the tongue. The duct ascends obliquely forward, 

 crossing the mesal surface of the lesser subhnguals, and terminates in 

 a separate caruncular orifice (2). lateral and a little caudal to the open- 

 ing of the main submaxillary duct (/). 



(c) The lesser sublingual glands (j) form an elongated mass, begin- 

 ning with a pointed ventral extremity opposite the genial tubercle and 

 extending caudad nearly to the lingual nerve. This group of separate 

 individual glands Hes on the lateral aspect of the two preceding ducts 

 and intersects their course in a cephalodorsal direction at an acute 

 angle. The caudal margin of the lesser sublingual group (j) is slightly 

 notched to accommodate the greater sublingual gland (2) which lies 

 below and behind the main part of the lesser sublingual mass. 



2. TROGLODYTES NIGER, S 



Columbia University Morphological Museum, No. 729, 



Fig. 2 



A. PAROTID 



The parotid appears as a firm, clearly defined egg-shaped mass, 

 placed ventrocaudal to the external auditory meatus, with its long 

 diameter nearly vertical and the cephaUc pole impinging against the 

 vertical border of the lobule. The gland is surrounded by a well- 

 defined and exceedingly firm fibrous capsule. There is no socia, and 

 the duct runs clear of lateral derivatives to its buccal orifice (5). 



B. INTERMAN DIBU LAR COMPLEX 



(a) The submaxillary gland (/) is a large loosely lobulated mass, 

 situated mainly below the mylohyoid level, but extending with a j)ar- 

 tially separate cephalic accessory jiortion under cover of the ramus 

 behind and above the caudal margin of the mylohyoid muscle (/o). 

 This portion is closely related to the deep surface of the parotid, and 

 is incompletely separated from the main caudal inframylohyoid part 

 of the gland by grooving branches of the submaxillary artery. The 

 duct emerges from the ventral margin of this portion of the entire 

 gland as a canal with very wide lumen and thin walls, and is crossed 

 on its lateral aspect almost immediatel)' by the Ungual nerve (/j). It 



