

281 
articular tract for the median process of the premaxillary is 1 inch 7 lines in length and 
6 lines in breadth (fig. 3); there is no distinct orbital process of the nasal. : 
The mandible of D. gravis, 4 inches 4 lines in length, is 2 inches 9 lines across the 
condyles, 1 inch 5 lines in breadth opposite the back part of the symphysis, which is 
only 7 lines in length (fig. 6). The splenial bends inward anteriorly toward the sym- 
physis, its pointed end terminating in the gtoove at the back part of the symphysis : 
it has coalesced throughout its length with the other elements of the lower jaw. The 
form of the symphysial or rostral part of this lower Jaw (Pl, LXXXT, fig. 6) indicates a 
corresponding breadth and obtuse termination of the short rostral part of the pre- 
maxillary. The type of beak of D. crassus is that which is exemplified in D, gravis. 
In size of head D, gravis most resembled D. rheides: but the degree in which specific 
characters are exemplified may be satisfactorily appreciated by contrasting their respec- 
tive mandibles in the figures 5 and 6 of Pl, LXXXI. 
Skull of Dinornis ingens, Ow. (Plate LX XXII.) 
To Pl. LI. (pl. 23. vol. iv. of the Transactions of the Zoological Society), representing 
the most perfect skull of a Dinornis which had come to my hands at the date of my fifth 
Memoir (Nov. 12, 1850, p. 59), I added a note of interrogation to the name of the 
species to which such skull was, with that expression of doubt, referred, 
This skull and many other bones, including limb-bones of Dinornis ingens, were dis- 
covered in 1849 in a cave in the district which lies between the river Waikata and 
Mount Tongariro, in the North Island of New Zealand: they were obtained and 
liberally transmitted to me by Governor Sir Grorae Grey in 1850. 
Successive receptions of Moa-remains, especially those with which the British Museum 
has been enriched by the laborious collectings of Mr. Walter Mantell, have added evi- 
dence of the general fixity of the characters of the above-described skull as belonging 
to an adult individual of a large and well-defined species; and the recent additional con- 
firmation of its appertaining to the Dinornis ingens, published in the Paleontological 
part of the Cireumnavigatory Expedition of the ‘ Novara,’ induces me no longer to defer 
the publication of the description and figures of the more perfect materials at my 
command for the restoration of this instructive part of the skeleton of that species. 
The portion of skull referred by Dr. Gustav Jaeger to Dinornis (Palapterys) ingens, 
in the above-cited work (4to, p. 307, Taf. 25, 26), consists of the cranial part only, 
wanting both upper and lower mandibles. The locality where the pee ieaee tee 
covered is not noted; it is stated to have formed part of the rich collection of remains 
of Dinornis obtained by Dr. y. Hochstetter during the stay of the Expedition of the 
Imperial Austrian frigate ‘ Novara’ at New Zealand’, 
* “Unter der reichen Sammlung yon Moa-Resten, welche Professor Dr, y. Hochstetter bei Gelegenheit der 
: . : + sich in 
Expedition der k. k. ésterreichischen Fregatte Novara aus Nen-Seeland nach Wien brachte, befindet sich ¢ 
Schidel,” &c., p. 307, 

