216 BRITISH FOSSIL ELEPHANTS. 



2. The supinator ridge (fig. 2) is shorter and more horizontal than in any of them. 



3. The upward continuation of the supinator ridge (fig. 2 a) is not nearly so well 

 defined as in them. 



4. The contour of the distal articular surface (fig. 2 a) is more like that of the Mam- 

 moth (fig. 1 a) than E. antiquus (fig. 6 a) and the recent species (figs. 4 and 5). This 

 refers to the configurations of the condyles, the arc on the lower border, and trochlear 

 depression. 



5. The internal condyloid ridge is broader (fig. 2) than in any of the above. 



6. The deltoid ridge (fig. 2) is not so prominent as in E. primigenius and E. 

 Asiaiicus, and is more in keeping with E. antiquus and E. Africanus. 



Taken collectively, as far as materials enable me to determine, the comparisons 

 already instituted in connection with the humerus in the three extinct and the two living 

 species seem to furnish the following contrasts as regards the former : 



1. The bicipital groove is much the same in all the extinct British Elephants. 



2. The contour of the head is more circular, and it is less compressed in E. meri- 

 dionalis than, at all events, in the Mammoth. 



3. The supinator ridge is shorter, and is the least salient in E. meridionalis. 



4. The deltoid ridge is prominent in E. primigenius, and not nearly so pronounced in 

 the other two, 



5. The hollow in front of the supinator ridge is not so deep in E. primigenius as in 

 the other two. 



6. The trochlear depression is deeper in E. antiquus than in the others. 



7. The margins of the cubital articular surfaces are not so sharp and defined in 

 E. meridionalis as in E. primigenius and E. antiquus. 



8. The contour of the lower border of the cubital articular surface is more central 

 in E. antiquus than in the other species. 



9. The internal condyloid ridge is broader in E. meridionalis than in the other two. 



10. The outer condyle is more globose in E. antiquus than in either of the two other 

 species. 



11. The humerus relatively is not so stout in the E. antiquus as in the other two. 



7. CUBITUS. 



The relations of the two elements of the forearm, to wit, the amount of obliquity of 

 the radius in E. meridionalis, as compared with other species, remain to be shown when 

 specimens turn up. At present I have not seen the entire bones of the same individual 

 in situ. 



Vina. 



The large ulnae from the East Coast, like the arm-bones, present few prominent ridges 

 for the fasciae and muscular attachments, as compared with the gnarled humeri and ulnae 



