MOA 



581 



oweni, in wbicli the tibia measui-es only 9*2, the smallest. A. ^mri-a 

 is the only member of the Family of which there is a perfect 

 skeleton in English collections. It is identified by Capt. Hutton 

 Avith the typical A. didiforonis ; but a skeleton transmitted by Von 

 Haast to the British Museum and assigned to the latter has a 

 relatively smaller skull. ^ In the type of A. {Mesopteryx) didina the 

 integuments of the head and feet are still preserved. 



Emeus, Eeichenbach, was established on D. crasms, Owen. It is a 

 rather large species, to which Owen and Von Haast assigned a broad- 

 billed skull, and although Capt. Hutton states that the skull is 

 really of the narrow-beaked type of Anomalopteryx, we have reason 

 to believe that the original view is correct. This Moa was confined to 

 the South Island. 



B 



Fig. 3. STERNrjr of Anomalopteryx casuarina (A), and Pachyornis ehphanlojnt^ (B), 1/6. 

 o, Costal process ; h, Lateral process. (From tlie same work.) 



Von Haast proposed the name Euryaptery.r for the small and 

 broad-beaked D. gravis, Owen. This species, which is confined to the 

 South Island, is distinguished from those that follow by the absence 

 of any inflection of the lower end of the tibia, and the relative 

 length and straightness of that bone. It therefore seems to be 

 entitled to generic distinction.- If, therefore, the so-called D. 

 rrassus really have a broad-beaked skull, both that and the present 

 species may be included under the title of Emeus. 



Lastly we have the genus Pachyornis, Lydekker, likewise typi- 

 cally confined to the South Island, and including some three or 

 four species of large size, characterized by the extraordinary 

 massiveness and sharpness of their limb -bones. The tarso- 

 metatarsus (fig. 2, A) presents a remarkable contrast to the corre- 

 sponding bone of Dinornis (fig. 2, B) ; and a similar contrast is 



^ It is doubtful if tliis skeleton is altogether autlientic. 



- According to Von Haast it is further distinguished by having a sternum of 

 the ty2)e of Anomalopteryx, but Capt. Hutton throws some doubt on the correct- 

 ness of the restoration of the skeleton by Yon Haast. 



