Breadth of the skull at the temporal fossae, l-9in. to l-7in.; 

 at the post-frontal processes, 2-8in. to 2-7in. Length of the 

 lower jaw, 4-25in. to 4iu. Total length of the head, about 

 5in. Length of the ilium, 15-5in. to 14in. ; of the ischium, 

 7'5in. to 6-5in. ; breadth of the sacrum. Tin. to 6-2iu. ; depth 

 of the pelvis, Gin. to 5-5in. 



Distribution. — Found in both Islands, but rare in the North. 

 The type is from a cave near Queenstown ; and bones have 

 also been found in the peat-beds at Hamilton and Glenmark, 

 and in the caves at Takaka. In the North Island, a few 

 bones have been obtained in the Te Aute Swamp and at 

 Poverty Bay. 



This species has been confounded with A. didiformis, but is 

 stouter in a,ll bones of the leg. It is also sharply marked off 

 from S. casuarinus by the length of the tibia, although no such 

 break exists with the inetatarsi. The skull is intermediate 

 between Ccla and Sijornis, but stands alone in the slenderness 

 of the beak. Sir E. Owen gave the name D. huttonii to this 

 species on the strength of my statement that it was different 

 from A. didiformis, but without any description. Afterwards 

 he described it under the name of D. didinus ; and I think 

 that the name that accompanied the description ought to take 

 precedence. 



Genus SYOENIS. 

 Dinornis (part) of Owen ; Si/07iiis and Emeus of Eeichen- 

 bach ; Meionornis, I'alapteryx (part), o^ndi Envy ay teryx {\)Qa:V) 

 of Haast. 



Shull convex, rounded behind, the supra-occipital sloping 

 forward to the lambdoidal ridge. Breadth at; the squamosals, 

 from 1-6 to 1-7 times the height from the basi-teiuporal. 

 Length from the supra-occipital to the nasals equal to, or 

 more than, the breadth of the squamosals. Length of the 

 basi-sphenoid from the basi-occipital to the end of tlae rostrum 

 three to three and a half times the breadth of the basi- 

 pterygoid processes. Occipital condyle just hidden or slightly 

 exposed both vertically and laterally. Temporal fossae broad. 

 Beak shorter than the head, moderately curved, much com- 

 pressed and pointed at the tip ; length of the premaxillte to 



