403 
A mere rudiment of the interzygapophysial band now remains, but behind it is a 
small foramen leading to the cancelli of the neurapophysis; a corresponding foramen 
is noticed in Struthio!, ‘The pneumatic foramen is, as usual, beneath the base of the 
FIFTEENTH VERTEBRA (4 nat. size). 
Fig. 18. 
Fig. 19. 
ns 

Aspects. 
Fig. 18, lateral; 19, hemal (ventral). 
diapophysis, which process shows its tuberous outstanding metapophysis (fig. 18, m) 
well marked above the pleurapophysial band, p/. This, as in the seventeenth (last 
cervical) vertebra in Struthio, is short antero-posteriorly, and each margin 1s concave, 
with a blunt production of its hinder and lower angle still representing the cervical 
riblet. Each vertebrarterial canal (figs, 20, 21, 0), as in Struthio, exceeds the neural 
canal in capacity. 
If the transverse expansion of the fore part of the centrum be reckoned as due to the 
bases of ‘parapophyses,’ the fore or preaxial articular surface (dc, fig. 2()) may be 
said to extend thereupon; but the parapophysis, ps, in Dinornis mcumnns may better 
be held to spring out external to the preaxial surface than in Struthio. The outer 
1 Mivart, loc. cit. p. 409. 
o2 
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