44 SOLENODON PARADOXUS. 



third begins at the anterior corner of the first premolar on each side and is 

 bowed forward; the fourth and the fifth arise on the palate at the base of tlie 

 second and third premolars respectively; finally, the sixth, seventh, and eighth 

 join the anterior edges of the first, second, and third medlars respectively. The 

 amount of Ijowing forward varies slightly. Brandt, in his original account 

 figures but seven, and Dr. J. A. Allen has recently described the same number 

 in the sj^ecimen at New York. These may represent actual variations or, as 

 seems probable, one (if the folds may have become relaxctl and thus have dis- 

 appeared through partial maceration. It is the smallest and anteriormost fold 

 that is lacking in Dr. .Mien's specimen. Peters figures nine transverse fokls for 

 S. cubamis. 



The tongue (Plate 9, fig. 4) is lung, narrow, and tapering. It is free at the 

 tip fur about 1'.) mm., and closely resembles that of the Cuban Solenodon in 

 the character anil distribution of the pai)illae. These are of three principal 

 kinds: first, the fungiform [lapillae, that are scattered over the surface of tlie 

 tongue from the muscular prominences at its root, where they are most numer- 

 ous, to the tip; they are white, and either rountl columnar projections or ex- 

 panded at the top, and project conspicuously from the surface of the tongue; 

 secondly, the circumvallate papillae of which there are three, one circular and 

 median, just posteri(jr to the swellings at the njot of the tongue, and two oval, 

 one on each side and slightly in advance of the median papilla; in Gymnura 

 there is no median circumvallate papilla; and thirdly under a lens, the surface 

 of the tongue is seen to be thickly covered with minute pointed filiform papillae, 

 which become larger and flattened with ajjpressed and backwardly directed 

 points in the region of the circumvallate papillae. There is a slight median 

 groove at the ti]) of the tongue. 



The epiglottis is short and cartilaginous, with a prominent median process 

 anteriorly. 



The salivary glands (Plate 5, fig. 1, p, s) are large and i)rominent. The 

 [larotid is the most conspicuous and lies behind the masseter muscle and tht; ear, 

 with a forward prokmgation nearly to the orbit in one sjiecimen examined. Its 

 duct is with difficulty traced from a point below the ear, forward parallel to the 

 roof of the mouth to about opposite the first molai-. The submaxillary gland 

 consists of two portions as in Gymnura, one slightly more median, posterior 

 to the angle of the jaw. Both are oval, smaller than the parotid, and slightly 

 darker in color. In Centetes, this gland is in three divisions. Wharton's duct 

 may be traced from the deeper portion of the gland near its center, forward, 

 along the inner side of the ramus to the root of the tongue. 



