334 EATITJE. 



parva, except for the greater posterior production of the 

 lateral arches. The centrum is less produced posteriorly 

 than in the earlier vertebrje. 



32144 c. The slightly imperfect sixth cervical vertebra. The spines 

 of the lateral arches reach nearly to the posterior border 

 of the centrum ; and the lateral articular surfaces on their 

 inner sides precisel}' resemble those of the corresponding 

 vertebra of A. parva. 



32148 a. The seventh cervical vertebra. Here (as in A. parva) the 



neural platform has become constricted, and has lost the 

 bar (fig. 09, r), converting the lateral notch into a foramen. 



32146 a. The eighth cervical vertebra. Here the zygapophysial 



plates converting the neural aspect into a platform have 

 completely disappeared, and a secondary lateral arch 

 behind and above the prezygapophyses makes its first 

 appearance. 



32149 a. The ninth (?) cervical vertebra. 



32147 a. Two vertebrae, probably about the eleventh in the series. 



The inferior tubercles of the lateral arches are slightly 

 developed and widely separated. 



32149 b. Three middle cervical vertebras, probably about the 12th 

 to the 14th, apparently belonging to one individual. 



32149 c. A middle cervical vertebra. The inferior tubercles of the 



lateral arches are almost in contact. 



32150 a. A middle cervical vertebra. 



32151 a. A later middle cervical vertebra, probably associated with 



and succeeding the preceding specimen. 



32151 b. A middle cervical vertebra, apparently immediately suc- 

 ceeding the preceding specimen. This vertebra, which is 

 about the 14th in the series, together with the next specimen 

 closely resemble the example represented in fig. 70, which 

 was figured by Owen as a half-sized view of the twelfth 

 cervical ofDinornis maximus. Compared with the cervical 

 of D. struthioides represented in fig. 59, p. 240, which has 

 the same approximate serial position, the present specimen 

 shows aU the characteristic generic features, such as the 

 slight obliquity of the postzygapophyses, the shallowness 



