DINOCERATA. 581 



production of the iliac crests in advance of and above the sacrum. It is 

 also elephantine in the shortness of the inferior elements of the pelvis. 



Of vertebrce there are preserved a dorsal, two lumbar, and some sacral. 

 The first is very short and transverse. It is so injured that I can only give 

 some measurements. The base of the transverse neurapophysis is a flat oval; 

 both capitular articular surfaces are deep. The anterior lumbar is longer, but 

 still short ; its ai'ticular faces are slightly concave. The neural arch is wide 

 and supports the diapophysis. The sides of the centrum are concave and 

 pierced by foramina, and there is a strong rugo^ hypapophysis. The sec- 

 tion at the middle is subtriangular. I have three sacral vertebrae, which are 

 separated by very distinct sutures. They diminish very rapidly in si2;e, 

 and the centra become flattened-transverse. It is doubtful whether there 

 was a fourth vertebra, and the tail must have been short and slender. The 

 articular face of the first is a transverse, rather broad ellipse, and twice the 

 diameter of the third distally. The diapophysis of the second is much the 

 stoutest. It unites with the subvertical plate-like diapophysis of the first 

 as well as with that of the third. It is concave above, and terminates dis- 

 tally in a massive L-shaped surface of articulation with the ilium. The 

 foramina inclosed by the diapophyses are quite large. The inferior face of 

 the first sacral centrum is slightly concave with a hypapophysial tuberosity 

 in front; it is strongly concave in the second. 



Measurements of vertebrce. 



M. 



Anteroposterior diameter of dorsal 044 



Diameter at bottom neural arch of dorsal 040 



X.ength of base of neurapophysis 041 



Diameter of centrum lumbar (vertical) 090 



Diameter of centrum lumbar (transverse) 110 



Diameter of centrum lumbar (anteroposterior) 060 



Length of three sacral vertebrae 226 



Transverse extent of sacrum ( 15 Inches) 380 



Diameter of first vertebra at free end (transverse) (4.6 inches) 122 



Diameter of first vertebra at free end (vertical) 093 



Diameter of last vertebra at free end (vertical) 021 



Diameter of last vertebra at free end (transverse) 06.5 



Total expanse of heads of rib 106 



Diameter of capitular face ( vertical) 048 



Diameter of tubercular (vertical) 030 



Width of rib just below head 050 



Restoration. — We may ascribe to the Loxolopliodon cornutus form and 

 proportions of body similar to those of the elephant. The limbs, however, 



