I04 SALIVARY GLANDS OF LOWER PRIMATES 



{b) Submaxillary duct (/) compound, carrying accessory post- 

 lingual gland (/")• In addition the secondary submaxillary gland 

 and duct (i') is present, so that the terminal common papillary seg- 

 ment of the parafrenular duct system is the result of the union of three 

 distinct and separate canals, v-iz : the main submaxillary duct (/), 

 the secondary submaxillary duct (/'), and the sublingual duct (2). 



A teles sp.^ {ater?) (Figs. 11 and 25). 



Fig. 25. Schema of alveolingual salivary complex in Aides sp.} (Fig. 11). 



III. All the genetic possibilities of primate salivary development 

 in this region appear combined in the preparation of Ateles above 

 described (Figs. 11 and 25), viz. : — 



1. Main submaxillary gland. 



i' . Secondary submaxillary. 



1". Accessory submaxillar}- gland. 



2. Greater sublingual or Bartholinian gland. 



(Glandula sublinguahs monostomatica, Illing.) 



3. Lesser sublingual glands. 



(Alveolingual or Rivinian glands.) 

 (Glandula subUnguaHs polys tomatica, Illing.) 



In the absence of definite data in regard to the ontogenesis of the 

 salivary apparatus in the lower primates, it is of course impossible to 

 trace the developmental history of these structures except by inference 

 and through comparison with known stages in the human embryo, 

 and with embryos of the lower mammalia. 



We know, as will b^ shown in detail in Schulte's ontogenetic studies 

 of the salivary apparatus of man and cat, forming part of this volume 

 (Parts II and VI). that in general the individual component glands are 



