DINonNlJIIlD.T;. 



223 



pelvis is narrow, with a high ilium, in which the inferior border of 

 the postacetabular portion is flat and does not descend as a sharp 

 ridgo bolow the level of the anterior postacetabular vertebrae ; the 

 pubis has a small pectineal process ; and the ventral aspect of the 

 true and postacetabular sacral vertebra) is very broad and much 

 flattened. 



Fig. 57. 



Dinornis maximus (A) and Pncki/ornis elephantopus (B). Ventral aspect of 

 right femur. 3. a, head ; h, great trochanter ; c, fibular condyle. 



The distal extremity of the tibio-tarsus (fig. 54) is not inflected ; 

 there is no hallux * ; the tibio-tarsus and tarso-metatarsus (fig. 58) 

 are long and slender, the length of the latter exceeding, or at 

 least equalling, that of the femur, and also exceeding half that of 

 the tibio-tarsus. The femur (fig, 57, A) is comiiaratively long and 

 slender, with a short neck, the head rising but slightly and pro- 

 jecting only a small distance, the linea aspera in the form of a 

 long irregular line, the outer side of the distal extremity moderately 

 expanded, the popliteal depression small, deep, and sharply defined, 

 the profile of the inner condyle semi-ovoid and narrow, and the 

 anterior trochlear surface nearly flat. The phalangeals of the pes 

 are long and comparatively slender, the proximal surface of the 

 terminal segments not being trefoil-shaped. 



In the vertebral column the middle cervicals are long and narrow, 



^ Ilutton, Trans. N. Zealand Inst, vol. ix. p. 364, states that one individual 

 of D. nova-zcalandim had a hallux. 



