400 



ANATOMY OF VERTEBRATES. 



submaxillary glands are very large, subcervical in position, extend- 

 ing from the angle of the jaw to the anterior border of the pectoralis 

 303 major, where they meet at 



the middle line, under-lap- 

 ping the sterno - hyoidei. 

 The gland, fig. 303, c, 1 is 

 lobular, and sends its se- 

 cretion by three or four 

 short ducts, d, d, into a 

 pyriform bladder, e, situ- 

 ated at the fore part of the 

 gland, from the apex of 

 which the duct, /, is con- 

 tinued forward to terminate 

 by a minute orifice on the 

 sublingual membrane of the 

 mouth, immediately behind 

 the symphysis menti. The 

 saliva which the bladder 

 contains is tenacious, the 

 serous part being probably 

 absorbed during its deten- 

 tion. Thus prepared and 

 accumulated it is expelled 

 at the fore and under part 

 of the mouth, in order to 

 lubricate the tongue. 



In the great Anteater the 

 submaxillary salivary gland 

 is a bilobed body, sixteen 

 inches in length, two inches 

 in greatest thickness at the 

 posterior part where the 

 two glands blend together. 2 

 From this confluent base 

 they diverge, extending outward and forward, and form, each, a 

 flattened triangular mass, from four to five inches in breadth 



1 cxxvn". p. 144. The preparations which exemplify this modification of the 

 salivary system are Nos. 772 l, and m, in xx, vol. i. p. 238 (1831). Prof. Rapp, in 

 cxxix". (1843), refers, for this structure, to Winker, Dissert, sistens observations 

 anatomicas de Tatu novemcincto. Tubing. 1826, pp. 10, 11 : Rapp, prseses ; who adds: — 

 1 Nachdem Prof. Jager, in Stuttgart, sie schon vorher bemerkt hatte.' This inaugural 

 Thesis I had not seen at the date of vm", and I became aware of its existence only 

 through the reference thereto in Prof. Rapp's work. 



2 vm". pi. 40. 



Salivary gland and bladder, Armadillo. 



