HuTTON. — On the Moas of Ne2o Zealand. 



137 



Euryapteryx ponderosus. 



Dlnornis gravis (?), Hutton, Trans. N.Z. Inst., vol. vii., 

 p. 275. 



Pelvis. 



Sternum. 



Skull. 



Length. 



Breadth. Breadth. Length, i Breadth. \ Height. 



Breadth of the skull at temporal fossae, 2in. to l-9in. ; 

 at the post-frontal processes, 3-lin. to 2-95in. Length of 

 lower jaw, 4-8in. to 4-5in. Total length of the head, 5-5in. 

 Length of the ilium, 16-5in. ; breadth of the sacrum, 8-25in. ; 

 depth of the pelvis, 6iu. The post-axial tarsal has a length 

 of 2in, to l-75in., and a greatest breadth of 0-9in. to 0-8in. 

 Length of the middle toe, 6in. 



Distribution. — Throughout Otago and Canterbury. Not 

 known from the Nelson District. It was the most abundant 

 species in the Maori oooking-places at Shag Point, where also 

 the skulls were abundant ; and it occurs in the Pleistocene 

 deposits at Motunau. No. 1 is from Hamilton ; No. 2 is the 

 measurements of a pair of legs in the Wellington Museum, 

 the locality of which is not known. 



The skull of this species can be distinguished from that of 

 the last by the processes at the liinder angles of the basi- 

 sphenoid, wdiich are higher and rounder in 2Jondcros2is, flatter 

 and more elongated in eleyhantopus. From E. gravis the 

 skull is distinguished by the parietals which are convex in all 

 directions in 2>onderosus, but concave longitudinally in gravis, 

 the post-frontal elevation on the skull being more conspicuous 

 in that species. But there are intermediate forms. The tibia 

 and femur appear to be well marked off from those of E. 

 gravis, but all the bones pass into those of E. eUphantoims. 

 I have separated it from this last species partly on account 



