134 Annals of the SoiitJi African Museum. 



Greatest length of the ilium SQlm. 



Length of part of pubis -215^1 . 



Ischium from posterior end of iliac suture to symphysis ... -SQOm. 

 Ischium from the point where the ihum, pubis, and ischium 



meet, to the tuberosity •215m. 



Ischial tuberosity to the anterior part of symphysis -SiOm. 



Height of the acetabulum -IGTm. 



Width of the acetabulum -ISSm. 



Greatest length of the pelvis -GlSm. 



The Femur. 



The femur is in a very fine state of preservation, the only portion 

 that shows any evidence of crushing is the inner condyle — a ridge 

 above this condyle in the drawing being due to the crushing. The 

 femora in the skeleton of P. baini are considerably crushed, but 

 the general proportions when the effects of crushing are allowed for 

 are very similar. The two main points of difference are in the shape 

 of the head and of the small trochanter. In P. baini the upper 

 articulation at its inner side looks almost directly inwards, but in 

 P. serridens no part of the articular surface looks inwards, the line 

 of the inner side of the bone being only slightly curved. The 

 small trochanter in P. baini is directed outwards over the con- 

 cavity which lies at the back of the upper part of the bone. In 

 P. serridens it is directed backwards and inwards, and is a more 

 slender process than in the other species. In the crushed femur 

 which has been referred to Proixifims the small trochanter is very 

 similar to that in P. serridens, though in Propappus the femur is 

 very much more slender. 



A very prominent muscular impression is seen near the middle 

 of the front of the bone about the level of the union of the upper 

 and middle thirds. 



The following are the principal measurements of the femur : — • 



Greatest length of the femur •416m. 



Width from articular surface to the lower end of great 



trochanter •228m. 



Width from great trochanter to small trochanter •170m. 



Greatest width of the condyles •200m. 



Length from top of the femur to upper border of articular 



surface of outer condyle •340m. 



