MEMOIR 
ON THE 
CRANIUM AND MANDIBLE OF 
DINORNIS INGENS, 
AND ON THE CRANIA OF 
DINORNIS GIGANTEUS, 
AND OF SPECIES OF 
Ae ah RY aa 
Four distinct generic types have been pointed out (pp. 151-184) of the cranial 
organization of the wingless birds of New Zealand :—one referable to an existing genus 
of Parrot (Nestor), peculiar to New Zealand ; a second to a bird most nearly allied to 
the Purple Coots, but of a distinct genus (Notornis), represented by a species about 
the size of a goose: the other two types belonged to much larger birds ; one, from its 
nearer approach to the Apteryx and Emeu, was referred to the genus Palapteryx ; the 
other, which differed in the structure of the back part of the cranium and in the 
greater extent of the ossified portion of the bill, was referred to Dinornis proper. 
The present memoir is chiefly devoted to the description of a still larger and more 
complete skull than any previously described, which in the greater extent of its ossified 
and deflected upper mandible approaches the Dinornis and deviates from the Palapteryz, 
but in the structure of the back and under part of the cranium more resembles the 
type referred to Palapteryxz. In regard to its size, as compared with that cranium 
described (p. 116) and figured in Pl. XVL., and referred to the Dinornis struthioides, the 
present cranium would, at least, merit reference by its size to the species called ingens, 
the second in point of stature of those that have hitherto been found in the North Island 
of New Zealand. 
3K 
