PRIMATE ALVEOLINGUAL SALIVARY AREA 



153 



Part IV, and the lines followed in the genetic evolution of this type are 

 indicated on the right side of Fig. 26, Part IV. 



C. Finally, in the third subdivision of this group, the main sub- 

 maxillary duct (7) carries both ventral and dorsal accessory submax- 



FiG. 2g. Schema of adult human alveolingual salivary complex (Part I, Fig. 17). 

 /. Submaxillary gland and duct. 

 /". Accessory submaxillary glands and ducts. 

 J. Lesser sublingual glands. 



illary components (/") and is joined near its termination by the duct 

 of a well-differentiated secondary submaxillary gland (/'). 



The specimen of Lagotbrix humboldlii, shown in Fig. 10, Part III, 

 and in schematic outline in Fig. 31, Part IV, illustrates this type. It 



Fig. 30. 



Schema of alveolingual salivary complex of Atclcs hybridus 



(Part III, Fig. 9). 

 I. SubmaxiUary gland and duct. 



3- 



Accessory submaxillary glands and ducts. 

 Lesser sublingual glands. 



will be noticed that the conditions in this animal correspond closely 

 to those found in another South American monkey, Ateles, shown in 

 Fig. II, Part III (schemata Figs. 23, 24, Part IV), except that in the 



