79 



The bone as a whole is short, thin, and slightly curved on its 

 own axis ; its smallest part makes up the pubic symphysis, 

 which is short. The thyroid foramen is a large oval, with its 

 long diameter parallel to the axis of the ischium. 



The acetabulum is large, sub-circular, and deep, with 

 prominent borders ; especially the iliac, which is produced 

 on its external extremity int(j a point; the ischiatic is deeply 

 notched. From the wide ligamentous pit in the centre 

 there runs a deep groove part way down the antero-external 

 side of the ischium. 



The anterior opening of the pelvis is a wide oval, with its 

 longest diameter transverse. 



Mcasuroiu'vJs of Pelvis. 



M. 



Transverse diameter of pelvis, including sacrum i • 171 



Long diameter of ilium (from lower margin of the crest to sacral surface). -440 



Short diameter of ilium (from acetabulum to upper margin of crest) -393 



Length of acetabular border • 125 



Length of ischium 220 



Width of ischium at tuberosity • 124 



Length of pubis • 196 



Greatest width of pubis 061 



Smallest width of pubis 027 



Long diameter of acetabulum • 139 



Short diameter of acetabulum • 118 



Long diameter of thyroid foramen -094 



The Femur (Plate VIII., Fig. 4;. — -The femur is short, 

 with a small oval head, strongly compressed fore and aft. It 

 is less out of the axis of shaft than in Proboscidea, and has 

 no pit for the ligamentum teres. The shaft is straight and 

 simple, much compressed transversely at the proximal ex- 

 tremity, becoming sub-cylindrical below. 



The great trochanter is heavy, rugose, and strongly re- 

 curved ; it is separated from the shaft by a wide and deep 

 digital fossa. The second trochanter is a mere rudimental 

 tuberosity. The condyles are nearly of an equal size, very 

 convex, and are divided by a deep popliteal groove. 



The condylar tuberosities are low, the internal sends ob- 

 liquely a ridge three inches long, up and across the axis of 

 the shaft at an angle of 45°, that forms the upper boundary of 

 the popliteal space. 



