DESCRIPTION OF PLATE XVII. 



Rhinoceros hemitkchus. 



The figures in this Plate represent molars of Rhinoceros 

 hemitoechus found in the Gower Caves by Colonel Wood. The 

 figures are three-fourths of the natural size, and have been 

 copied from drawings executed from the original specimens 

 for Dr. Falconer by Mr. Dinkel. 



Figs. 1 and 2. Show in plan and profile a fragment of the right side of 

 the upper jaw, containing the last premolar mutilated at the 

 outer surface, and the antepenultimate and penultimate true 

 molars, the latter having the inner side of the posterior barrel 

 fractured. The crowns are in a less advanced stage of wear 

 than in the specimens represented in figs. 1 and 2 of Plate XVI. 

 (See pages 325 & 332.) 



Figs. 3, 4, and 5. Eepresent three different views of a detached germ of 

 the last true molar, upper jaw, left side, which had not yet come 

 into use, and which presents all the folds and depressions of the 

 enamel-shell in a very perfect manner. Fig. 3, crown surface. 

 Fisr. 4, inner surface. Fig. 5, outer surface, a, anterior colline ; 

 b, longitudinal colline ; c, the continuation of the longitudinal 

 colline which is the homologue of the posterior transverse 

 colline ; d, the crochet ; e, the anterior barrel ; /, the anterior 

 basal bourrelet ; g, the posterior barrel ; h, a small tubercle at 

 the posterior inner angle ; i, vertical groove of the anterior outer 

 angle ; h, intercolumnar tubercle. (See pages 325 & 335.) 



VOL. II. 



