PRIMATE ALVEOLINGUAL SALIVARY AREA 



145 



greater and lesser sublingual areas (2, j) of the other forms by in- 

 creased development in the district of the accessory submaxillary 

 glands (/"). 



C. Finally, there is a relatively small group of adult intermandibular 

 salivary glands, characterized by the lesser sublingual group (j) and 

 by separate ducts and dis- 

 tinct jxirafrenular orifices of 

 both main submaxillary (/ ) 

 and greater sublingual (2) 

 glands, in which the main 

 submaxillary duct (/) is 

 joined, at some point caudal 

 to the terminal opening, 

 by a parallel duct, which 



apparently drains, through 



a separate and distinct 



canal, a secondary sub- 

 maxillary gland (/') situ- 

 ated above the mylohyoid 



and caudal to the lingual 



nerve intersection. These 



conditions are illustrated 



by the specimen of Macacus 



nemestrinus shown in Fig. 7, 



Part III (schema Fig. 18, 



Part IV). Their genetic 



derivation is indicated on 



the right side of schema 



Fig. 19, Part IV. The in- 









Fig. ly. 



tfl'i'' 



dividual character of this 

 gland, the distinct and the 

 speciaHzed position of its 

 duct, above the main sub- 

 maxillary duct, have led me to define it as a "secondary submaxillary 

 gland," in contradistinction to a prolongation of the glandula sub- 

 lingualis major caudad of the line of intersection of the salivar)- ducts 

 with the lingual nerve, so as to produce what Ranvier, without mor- 



