1 88 ANATOMY OF THE SALIVARY GLANDS IN THE CARNIVORA 



the variants are shaded. The lesser sublinguals (i8) are considered 

 constant in the vicinity of the lingual nerve with a disposition to 

 spread forward along the alveolingual gutter towards the caruncula 

 salivaris. Similarly the inferior alveobuccal elements {i6) are always 

 present from the border of the masseter to a point beyond the angulus 

 oris, thence extending themselves towards the inferior diastemal fold, 

 their cranial limit. They also extend inconstantly dorsad a short 

 distance along the border of the masseter. The orbitoparotid (8) 

 abuts upon this muscle much in the same way as the sublinguahs 

 major upon the digastric, and has like the latter gland a tendency to 

 develop a lateral process and so escape the obstruction. The duct 

 opens either upon the stomal ridge or into that of the parotid. 



SUMMARY 



1. In the fissipede carnivora the full complement of salivary 

 glands are present; opening into the vestibule, the parotid, the orlji- 

 tals, the inconstant orbitoparotid, and the inferior alveobuccal 

 (molar) glands ; opening into the cavum oris proprius, the sub- 

 maxillary, sublingualis major, subHnguales minores, isthmian, and 

 palatine glands. 



2. The parotid, orbitoparotid, and orbitals constitute a single 

 series which is divided by the masseter into cranial ectomasseteric and 

 caudal entomasseteric elements, the parotid and orbital glands re- 

 spectively. The orbitoparotid is an inconstant intennediate gland, 

 corresponding to the border of the masseter, and in consequence tend- 

 ing to suppression. 



3. The lesser sublinguals, greater sublinguals, and subma.xillary 

 glands are, respectively, dorsal, intermediate, and ventral in position. 

 With regard to the lesser sublinguals, this statement applies strictly 

 to their orifices alone; their bodies, when well developed, are lateral to 

 the larger ducts from the region of the hngual nerve craniad. 



4. The parotid, submaxillary, and sublingualis major glands have 

 bodies in which their ducts divide and ramify, and circumductular 

 extensions which are composed of small lobules draining by short 

 ductules into the main duct. These extensions are inconstant and 

 Irighly variable ; isolated portions of them are usually described as 

 accessory parotids or submaxillaries. In the case of the sublingualis 

 major, the circumductular extension seems either to be present as a 



