PART VII 



THE ANATOMY OF THE SALIVARY GLANDS IN SOME 

 MEMBERS OF OTHER MAMMALIAN ORDERS 



MARSUPIALS, INSECTIVORES, RODENTS. AND 



UNGULATES 



By Churchill Carmalt 



In the following account a limited number of species of Marsupials, 

 Insectivores, Rodents, and Ungulates have been selected for illustration 

 and description from a large amount of available material. Previous 

 accounts of the salivary organization in the domestic and laboratory 

 animals, and in many of the wild forms, have been published, notably 

 by Cuvier, Meckel, Owen, Ranvier, and, more recently, by Ilhng 

 and Zumstein. Reference to these pubHcations is here omitted, be- 

 cause a general review of the salivary literature follows in Part VIII 

 of this volume. 



MARSUPIALIA 



Fig. I. DiDELPHis Marsupialis — Virginia Opossum. 

 Princeton University Morphological Museum, No. 456. 



This marsupial presents an extremely simple and generalized tj'pe 

 of mammalian salivary organization approaching rather closely the 

 conditions encountered in the average arctoid carnivore (cf. Part V). 



I. The retromasseteric parotid (5), moderate in extent, fits with a 

 concave margin around the caudal circumference of the external audi- 

 tory canal and concha. The caudal excursion of the gland does not 

 extend beyond the facial vein and its companion lymphatic nodes (/o). 



The parotid duct (5) is simple in its entire long course across the 

 masseter. 



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