572 GEOLOGICAL SUEVEY OF THE TEREITOEIES. 



.Measurements of femur. 



M. 



Total leu gtli, (31.75 inches) 0.747 



Total proximal width 2ri5 



Diameter of ball 1:>G 



Transverse diameter at middle of shaft . 09G 



Antero-posterior diameter at middle of shaft 074 



Antero-posterior diameter condyles posteriorly 150 



Transverse diameter condyles posteriorly 160 



Transverse diameter condyles distally 145 



' The pelvis has a large transverse expansion. The iliac plates are ovoid 

 in outline, with the apex outwards and downwards. The margins are 

 rather thin excepting the internal above the acetabulum. These are 

 massive, and with a longitudinal excavation. They terminate in a deep 

 oblique excavation for the diapophyses of the sacrum. The inferior 

 margin rises compressed from just above the acetabulum. The latter is 

 large for the size of the ilia, and its margins rise to a slight elevation 

 beneath the exterior margins of the latter. The incisura acetabuli is ob- 

 clavate, and nearly symmetrical. The os ischium is compressed and 

 deeper than the pubis. It possesses a tuberosity on the posterior in- 

 ferior inargin. The obturator foramen is small, and is a vertical oval. 

 The ][)uhis is rather slender and short. Its section at base is subtrian- 

 gular; beyond, it becomes more compressed, and is spirally twisted on 

 itself through a part of a circle. Its anterior margin near the symphy- 

 sis, is strongly rugose for the origin of the pectineus muscle ; the rugosity 

 extends into a baud on the outside of its proximal portion. 



Measurements of pelvis. 



M. 



Long diameter of ilium 0. 605 



Transverse diameter at acetabulum 430 



Length inferior free margin do 250 



Long diameter acetabulum 150 



Shorter diameter acetiibulum 130 



Shorter diameter obturator foramen , 070 



Width ischium to tuberosity 140 



Length ischium at tuberosity 110 



Diameter i)abis at obturator foramen 062 



Expanse of ilia laid on a flat surface and with sacrum in place, (4.2 feet) 1. 280 



The general character of the pelvis is more like that of the elephant 

 thau that of any Perii^sodactyle. It agrees with the former and difters 

 from that of the rhiuocerus in the shortness of the pedestals of the ilias 

 or rather in the sessile position of the latter on the acetabula; also in 

 the absence of production of the iliac crests in advance of and above 

 the sacrum. It is also elephantine in the shortness of the inferior ele- 

 ments of the pelvis. 



Of vertcbrcL\ 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 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; itsarticular faces are slightly concave. 

 The neural arch is wide, and supports the diapophyses. The sides of 

 the centrum are concave and pierced by foramina, and there is a strong 

 rugose hypapophyseal keel. The section at the middle is subtriangular. 

 I have three sacral vertebrae which are separated by very distinct sutures. 

 They diminish very rapidly in size, and the centra become flattened 

 transverse. It is doubtful whether there was a fourth vertebra, and 



