LOXOLOPHODON AND UINTATHERIUM. 



33 



SKELETON OF LOXOLOPHODON AND UINTATHERIUM. 



We fortunately obtained a series of six cervical vertebras of Loxolophodon, 

 several dorsals, the humerus, ulna, and radius of one individual. The distal end 

 of a femur belonged to another individual ; also the tibia and numbers of the 

 foot-bones of others. There were no portions of the head found to positively 

 establish these remains as belonging to Loxolophodon ; but numbers of the re- 

 mains of other individuals of this genus were found on the same level and not 

 far separated from these vertebrae and limbs. 



Loxolophodon— Cervical Vertebr/E. 



Cervical Region. The Atlas has a light superior arch, deeply cupped for the 

 occipital condyles, and with sub-oval faces for the axis. There is a shallow groove 

 on the lower arch for the odontoid process, and a perforation of the transverse 

 process close to the centrum. The Axis\\\\\\ its bifid spine wears a close resem- 

 blance to that of the elephant, save for the shorter upper arches. The centrum 

 is long and is a transverse oval slightly concave behind. The odontoid process is 

 short and stout. As in Elcphas, the laminse support throughout the series ob- 

 liquely divided zygapophysial faces. The centra of the succeeding vertebras are 

 slightly opisthocoelous, and in our specimen have lost the terminal epiphyses ; 

 thus the combined measurements give a shorter neck than the animal shows in 

 the Restoration, Plate IV. The transverse processes are widely perforated, as 

 in the elephant, with a rather pronounced inferior lamella. The spines are low 

 rugosities. The neural canal is a broad oval. The seventh cervical has not been 

 procured. 



Measurements of the Cervical Vertebrae. 



M. 



Atlas, transverse diameter, estimated ii 



do. inferior arch fore-and-aft 088 



do. height 135 



Axis, centrum, fore-and-aft 11 



do. do. transverse 145 



do. height to top of spine 195 



5th cervical, centrum, fore-and-aft 058 



do. do. transverse ii 



do. do. vertical 09 



do. to top of neural spine 154 



nta. 

 M. 



051 

 III 



079 



The figures given in the second column are from a single cervical vertebra 

 belonging to U. Leidianuni. Cope has described a separate genus, Eobasileus, 

 similar to Loxolophodon in other respects, but with cervical vertebrae of less than 



