13 



of two longitudinal ribs, one corresponding to each fossa, but concave in 

 longitudinal section. 



The proximal end of the radius exhibits two facets oblique to each 

 other, the larger concave and transverse, the other oblique downwards. 

 Transverse width M. 0.130 ; vertical .070. The extremity of a humerus 

 not found with this individual, to which the radius applies pretty well, 

 has a very oblique trochlear face, and measures seven inches across the 

 condyles. It, however, belongs to a smaller species. 



The femur is entire. Like that of other species of the group it is 

 much expanded proximally and deep distally, with the shaft contracted 

 and somewhat flattened in the plane of the great trochanter. The latter 

 is in one plane, with its external margin turned a little backwards. The 

 head is part of a globe, and is a little more elevated than the trochanter, 

 and separated from its apex by a shallow concavity. There is no little 

 trochanter. The trochlear face is not elevated nor wide, and with lateral 

 borders subequally developed. The aiitero-posterior axis of the con- 

 dyles is somewhat oblique to a line at right angles to the proximal end. 

 On this account the interior coaidyle is the longer ; its articular face is 

 continuous with the trochlear, with a marginal notch ; the outer condyle 

 is continuous, with continuous outer margin. Strong ridges revolve 

 from above the condyles to the posterior face of the shaft, the inner near 

 the condyle. The outer runs parallel to the main axis as a low external 

 ala, and backwards three inches above the condyle. The face between 

 them is concave. 



Measurements of Femur. 



M. 



Total length, (31.75 in.) ' 0.747 



Total proximal width 255 



Diameter of ball 136 



Transverse diameter at middle of shaft 096 



Antero-posterior " " " 074 



" condyles posteriorly 150 



Transverse " " " 160 



" " " 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 external 

 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 be- 

 neath 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 inferior mar- 

 gin. The obturator foramen is small and is a vertical oval. The pubis is 

 rather slender and short. ' Its section at base is subtriangular; beyond, 



