282 
Dr, Hochstetter, however, was so fortunate as to have presented to him the parts of 
the skeleton of one individual Moa, determined by proportions of the leg-bones to be 
Dinornis ingens, which had been discovered in a limestone cavern on the right bank of 
the Aorere River, in the Province of Nelson, New Zealand, in which, with the cranium, 
were the two tympanic bones (“ Quadratknochen”) and both upper and lower jaws. 
Unfortunately no other figure of this skull is given, save that (much reduced in size, as 
seen obliquely from below) in the plate of the restored skeleton. It shows, however, 
as may be seen in the copy added to Pl. LXX XII. fig. 4, the main characteristic dis- 
tinctions of the skull of Dinornis ingens given in Pl. LIV., viz. the wide temporal 
fossee, the long rostral portion of the premaxillary, and the extent of the prenarial 
septum. Further conformity is shown by the following admeasurements :-— 
Dinornis ingens’. ‘ Novara’ specimen®, 
in, lines. in. lines, 
Breadth of the cranium across the mastoid.......-..+++-+. 3 8 3 8 
Breadth of the lower end of paroceipitals ............0055 2 10 3 0 
Breadth of the lower end of postorbitals.... 0.0.0. .00000 08 ‘t 0 + 2 
Antero-posterior diameter of temporal fossa .......+0+5+05 1 6 1 6 
Antero-posterior diameter of posttemporal diyision of tem- 
ese cumsA TG eas Pye dale eee dente argc 6 poms Pe EE 0 53 0 6 
Breadth of intertemporal tract ...... sce cseeecenceeees 1 8 1 9 
I have found no such degree of conformity between skulls of distinct species of 
Dinornis as is here exemplified. 
The length, of “about eight inches,” assigned to the entire skull of Dinornis ingens 
(p. 207) was estimated on the supposition that the nasal process of the premaxillary 
(Pl. LI. 22) had lost more from its free end than I now know to haye been the case; 
that described skull would not be more than from two to four lines longer than the 
more perfect specimen figured in Pl. LXXXI. The superoccipital transverse ridge 
(ib. fig. 2, d, d) shows two curves on each side the vertical ridge (2 ), the outer one being 
the widest, as in Dinornis struthoides (Pl. XVI. figs. 1, 3); the occipital condyle (1) is 
less pedunculate ; the temporal fosse (fig. 1,7) are wider, with a different contour; and 
the prosencephalic chamber is more prominent on the upper surface of the cranium; 
the smooth tract between the temporal and occipital muscular fosse is also narrower 
in Dinornis ingens than in D. struthoides. The mastoid (Pl. LX XXII. fig. 1,8) is pro- 
duced as a slender process about five lines below the masto-tympanic articulation ; 
the premastoid ridge (ib. 8’) seems more definite than in D. struthoides. The postfrontal 
process (12) is relatively longer than in Dinornis robustus; the zygomatic arch (26 27) 
sends upward a more definite process toward the postfrontal. The rostrum (22 82) 
accords with the type of that in Dinornis robustus (Pl. LXTV. fig. 1), but is rather 
narrower and less obtuse. 
‘ Pl. LIL, and p. 281, Pl, LXXXTI,. 
* ‘Novara’ Expedition, Abth. Paleontologie, Taf, xxv. xxvi, (Dr. G, Jaeger’s specimen). 
