160 BRITISH AND EUROPEAN FOSSIL ELEPHANTS. 



in front and broad behind, yielding somewhat of an ovate 

 outline. The specimen in the collection of the Geological 

 Society, from Kent's Hole cavern, is a penultimate upper 

 milk molar of the right side, with the crown much worn and 

 the anterior portion ground out. The discs of the six pos- 

 terior ridges remain. 

 The dimensions are : — 



Length, 2-2 in. Width behind, 1-3 in. 



The specimen (No. 583 of the Cat. Foss. Mam.) in the 

 Museum of the College of Surgeons is a left upper maxillary, 

 containing the penultimate milk molar far advanced in wear. 

 The crown in this case is also much worn, presenting the 

 discs of six principal ridges and a hind talon. The specimen 

 is reputed to be from the Drift-beds at Hford. 



The last milk molar, or third in succession, of the upper 

 jaw of E. primigenius, abounds in English collections, both 

 from the caverns and froni the Drift-beds. It is readily dis- 

 tinguished from the same tooth in the other species, fossil 

 or recent, by the broad squat form of the crown and the 

 closely approximated ridges and uncrimped enamel-plates. 

 A fine illustration of this tooth is presented by the Hunterian 

 specimen (No. 585, Cat. Fossil Mam.) in the Museum of the 

 College of Surgeons, from Hinton, Somersetshire. The crown 

 is composed of eleven principal ridges, with talons, the 

 anterior part being slightly worn, showing the discs of five or 

 six ridges ; the posterior ridges are intact. 



The dimensions are : — 



Length of crown, 3 - 6 in. Width in front, l - 5 in. Greatest width, 1-8 in. Height 

 at sixth ridge, 2 - 6 in. 



The ridges are closely approximated, and the attenuated 

 layers of enamel free from crimping. In the descriptive 

 Catalogue (p. 140), the crown is regarded as being composed 

 of twelve plates, the last being here considered the posterior 

 talon. 



Another illustration of the same tooth, a right upper, may 

 be cited in a British Museum specimen, No. 156 of the 

 Paleeontol. Cat. The crown is composed of eleven principal 

 ridges, besides talons ; the six anterior ridges are worn. 



The dimensions are : — 



Length of crown, 3 - 7 in. Width in front, 1*4 in. Greatest width, 1-9 in. Height 

 at sixth ridge, 3'0 in. 



A third illustration is afforded by a germ-specimen of a 

 left molar from Kent's Hole cavern, in the Museum of the 

 Geological Society. The crown is composed, besides talons, 

 of twelve principal ridges, of which the first alone is abraded, 

 the rest being intact. 



