ANATOMY OF THE SALIVARY GLANDS IN THE CAENIVORA 



17; 



lingual nerve to the arcus palatinus, where they are reduced to scat- 

 tered elements, as are also the isthmian glands. On the other hand, the 

 sublingualis major is absent ; its orifice could not be found, nor did 

 a careful search reveal any trace of its duct or body. Taken in con- 

 nection with the large development of the submaxillary and lesser 

 sublinguals, this absence of the gland of Barthohn is important as 

 pointing to the possibility of vicarious or compensatory growth on 

 the part of the several gland elements of the alveolingual region, in 

 the sense that size and complexity of one of them, in a region so cir- 

 cumscribed topographically, is not without influence upon the others, 

 as tending to limit the space available for their expansion by its growth, 

 or by its reduction to afford opportunity for the appearance of acces- 

 sory elements, which in ordinary circumstances are latent. It is not 

 meant to imply, however, that spatial opportunity is the sole factor 

 in determining the development of variant elements, or the degree 

 of development of the salivary complex as a whole, the explanation of 

 which must be sought in far more intricate conditions than those of 

 topography, but merely that in a given region there may be sometliing 

 of the nature of a struggle for existence among the several elem.cnts 

 which are potentially capable of occupying the available space. 



The vestibular glands of this specimen differ in a few particulars 

 from those of the other badger. A minute dorsal accessory lobule is 

 attached to the parotid duct a few millimeters from its emergence. 

 The inferior alveobuccal glands form a larger mass, extending from 

 the diastemal fold to the facial vein, which separates them from the 

 masseter. The caudal extremity of the mass ascends to the level of 

 the angulus oris, and forms with the remainder of the mass an acute 

 angle, in wliich a slip of the facialis muscle passes to its insertion into 

 the oral mucosa. The condition is similar, though less in degree, to 

 that of the bitch of Fig. 7. As the diastemal fold is approached these 

 elements diminish in size, and the mass terminates by a pointed 

 extremity. 



The orbital glands of the badger are seven or eight in number, 

 opening upon the summit of a stomal ridge by a series of minute papilla. 

 The first orbital is relatively a little smaller than in the cat ; the 

 series diminishes in size caudad. 



A superior diastemal fold is present. It resembles the inferior, 



