166 Transactions. — Zoology. 



broad, but longitudinally ridged ; the transverse processes of 

 the posterior ones are strong, slightly oblique, and leave no 

 second fossa. 



Sternum. 



Body nearly quadrate, anterior margin slightly curved 

 dorsally ; costal processes long and directed much dorsad, but 

 not pre-axiad ; lateral processes long, slender, not diverging 

 much ; median process long. No coracoidal depressions, but 

 internally there are deep pneumatic depressions at the 

 antero-lateral corners. 



Note. — M. curtus differs from the others in the following 

 points : The cervical vertebrae have flatter neural ridges, and 

 often no depression at their pre-axial bases. In the thoracic 

 vertebras the anterior pneumatic foramen does not descend so 

 low, and is not divided by a septum, and there is no posterior 

 pneumatic foramen in No. 28. The neural spine is shorter, 

 and the faces of the zygapophyses are broader. The ster- 

 num has no pneumatic depressions in the antero - lateral 

 corners. 



Genus ANOMALOPTEEYX, Hutton (1891)'.* 

 Anomalopteryx (Group Cela), Lydekker (1891). 



Type — A. parva, Owen. 



Figures. — Owen, Trans. Zool. Soc, vol. xi., pi. 51 to 58. 

 Haast, Trans. Zool. Soc, vol. xii., pi. 31 and 32. 



The material in the Museum is not sufficient to enable me 

 to give a full description of the vertebral column ; but the 

 following is offered as a contribution. The vertebrae resemble 

 those of Pachyomis more than any other genus. 



Cervical Vertebra. 



Anterior cervicals, 4 and 5 : The neural spine is divided 

 nearly to the base in both. The post-axial margin of the 

 neural platform is deeply concave in both. Hyperapophyses 

 are strong on No. 4, but not strong on No. 5. 



Middle cervicals have the centra moderately long ; the 

 hypapophyses rise close to the pre-axial border. The neural 

 ridges are flattened, but carry narrow hyperapophyses. The 

 transverse bar is low, and rises very obliquely. There is no 

 depression at the pre-axial base of the neural ridge. The 

 posterior cervicals have the hypapophysis single on both 20 

 and 21 ; while the neural spine is double in No. 20, and either 

 single or double in No. 21. 



* " New Zealand Journal of Science," Nov., 1891, p. 248. 



