ANATOMY OF THE SALIVARY GLANDS IN THE CARNIVORA 1 79 



meters ; in P. vulgaris and P. erniinea they join the isthmian glands. 

 So far as these elements are concerned, Putorius seems closely to 

 resemble Taxidea. 



ZALOPHUS CALIFORNIANUS 



(Morphological Museum of Princeton University, No. 824.) In 

 the sea-lion (Fig. 15) the salivary glands, with the e.xception of the 

 lesser sublinguals, are of relatively small development. The parotid 

 (/) is submeatal in position and shows no tendency to extend over 

 the cephalohumerahs muscle. It is of an elongated pyriform shape, 

 its cranial extremity extending forward along the duct (2). This 

 has a distinctly ascending course upon the masseter, at the cranial 

 border of which it passes between the deep and superficial facial veins, 

 pierces the buccinator obliquely, and opens opposite the first upper 

 molar. In the shape of its body and the course of the duct it resembles 

 conditions attained in the cat embryos of 35 and 51 miUimeters. 



The subma.xillary (20) is smaller than the parotid, ovoid with its 

 long a.xis oblique. Like the parotid, the submaxillary resembles 

 more closely than in the other carnivores the developmental condi- 

 tions in the cat. In the embryos referred to, it has an elongated 

 form and an a.xis nearer the horizontal than the vertical plane. The 

 duct (21) emerging from its dorsal pole has the usual course and rela- 

 tions. There is a small dorsal accessory lobule, ental to the digastric, 

 draining by a short ductule into the beginning of the supramylohyoid 

 segment of the subma.xillary duct. It is immediately caudal to the 

 subungualis major. This gland is elongated ; its fundus corresponds 

 to the lingual nerve, and is, therefore, entirely of supramylohyoid 

 position and terminates without reaching the digastric muscle. The 

 gland is prolonged forward by small incrusting lobules about the duct, 

 which is free only in a short terminal segment. The lesser sublinguals 

 (iS) are well developed, and correspond in sagittal extent to the body 

 of the sublingualis major. The isthmian glands are absent. The 

 typical reciprocal relations of the glands of the alveolingual region 

 arc well shown in the figure, the submaxillary duct ventrad, the 

 ah'colinguals dorsad, the sublingualis major intermediate. 



In two other specimens in the Columbia Collection similar conditions 



