SALIVARY GLANDS OF LOWER PRIMATES 8$ 



Structure which Hes caudolateral to the main submaxillary duct (/) 

 and its accessory gland (/")• Its terminal portion is crossed on its 

 lateral aspect by the ascending tail of the lesser sublingual mass, and 

 extends to a point beyond and below the intersection of lingual nerve 

 and main submaxillary duct. 



(f) Lesser sublingual glands (j). — An elongated mass, beginning 

 anteriorly at the level of the papilla, and extending thence caudad, be- 

 low and lateral to the submaxillary and greater sublingual glands. 

 The terminal extremity, ascending obhquely to the border of the 

 tongue, crosses the greater sublingual gland and submaxillary duct 

 and extends beyond the Ungual nerve into the palatine arch. This 

 specimen is an exceedingly good example of uniform and full develop- 

 ment of all three components of the submandibular salivary group. 

 The free unfolding of the greater and lesser subhngual elements is 

 especially marked. 



3. CYNOCEPHALUS HAMADRYAS 



Columbia University Morphological Museum, No. 2 151, 



Fig. 5 



A. PAROTID (5) 



The extensive parotid development, characteristic of the Cyno- 

 cephalidae in general, is in this species modified by the separation of 

 the mass into two distinct segments : 



(fl) Accessory parotid. — A bilobed glandular mass f<5), opening into 

 Stenson's duct, occupies the angle of the mouth, at the ventral border 

 of the masseter, overlying the facial vein and nerve. The gland, which 

 was filled by injection through the buccal orifice of the parotid duct, 

 surrounds the tenninal portion of the latter, just prior to its engage- 

 ment in the buccinator. It corresponds topographically to the so-called 

 "facial" or "angle" gland found in some mammals at the oral angle 

 overlying the labial comniissure. but in hamadryas it is clearly a paro- 

 tid deri\'ative and not an independent product of glandular develop- 

 ment from the periparotid oral epithehum. Its position and inde- 

 pendence suggests that it represents Schulte's " orbito-parotid," 

 combined with the duct of the main gland into a short common ter- 

 minal duct segment with single buccal orifice. 



