74 SALIVARY GLANDS OF LOWER PRIMATES 



The alveolingual region was exposed by resection of one-half of the 

 mandible on one side, the other side being used for the topographical 

 demonstration with intact mandible. The following preparations 

 have been selected from this material for description and illustration 

 in the present communication. They are all contained in the Morpho- 

 logical Museum of Columbia University, with the exception of the 

 preparation of Lemur moiigoz (Fig. 13), which is No. 1482 of the 

 Princeton Morphological Museum. 



I have, naturally, in common with previous investigators, encoun- 

 tered the difl&culty of adjusting results to the current nomenclature 

 which the submandibular group of the salivary glands has inherited 

 from anthropotomy. Ranvier, Maximow, and lUing complain justly 

 of the insufficiency of existing definitions of mammalian salivary com- 

 ponents in this region, and of the inaccuracies of the attempted homol- 

 ogies. This question will again be discussed after dealing with the 

 comparative anatomical data here recorded. In the preliminary 

 descriptive portion of this communication we deal with the unmis- 

 takable parotid gland of the lower primates, and with the glandular 

 complex of the sub- and intermandibular regions. For descriptive 

 purposes, and on grounds to be subsequently defined in detail, the 

 following terminology has been adopted : 



I. Parotid Group 



I. MAIN PAROTID GLAND AND DUCT (STENSON'S DUCT) 

 2. ACCESSORY PAROTID GLAND (SOCIA PAROTIDIS) 



A glandular mass, distinct from the main parotid and opening by 

 a separate duct, or by several ducts, into the parotid canal. 



This component may be situated at any point between the free 

 cephalic border of the main gland and the engagement of the duct in 

 the buccinator muscle. In the latter case close topographical relations 

 are established between it and the members of the next succeeding 

 group of the orbital glands, or elements developing as distinct glands 

 in the orbitoparotid interval (cf. infra, Parts II and VI, in Schulte's 

 description of this area in embryos of man and cat). In some in- 

 stances several accessory parotid glands occur, and the cases in which 



