238 
MEMOIR 
ON THE 
GENUS CNEMIORNIS. 

IN the collection of bones, including the skull of Dinornis rodustus, Ow. (described in 
the Memoir, p. 151), gathered from the bottom of the fissure in the limestone rock at 
‘Timaru,’ Middle Island of New Zealand, there were remains of smaller birds, the tibia 
of one of which first attracted my attention by the unusual size of the muscular crests 
and processes at its proximal end. 
A comparison of this tibia with that bone in other birds proved it to belong toa 
species hitherto unknown, and gifted with legs, if one might judge by the unusual pro- 
vision for muscular attachments, capable of being applied with greater force than in 
the rest of the class: for not only did the epicnemial process rise high above the 
knee-joint, as in Colymbus, but both procnemial and ectocnemial plates were as extra- 
ordinarily developed. 
This tibia was about the size of that in Aptornis otidiformis' and Dinornis geranoides ; 
nearly equalling in length, but exceeding in thickness and strength, that of the larger 
Argalas and Storks; more closely resembling in both proportions the tibia of the 
Mooruk Cassowary. | 
With the tibia from Timaru was a femur of proportional size, and fitting thereto as 
well as the loosely adjusted articular surfaces of the bones forming the knee-joint admit 
of in birds. There was also a metatarsus more decidedly belonging to the same bird 
by the closer adaptation to the distal trochlea of the tibia; and the three bones gave a 
total length of leg of about 24 inches. 
A pelvis, by its proportions to this limb, and more especially by the relative size of 
the acetabulum to the head of the femur, claimed to be entered in the list as part of 
the same bird. To the fore part of this pelvis fitted the articular surfaces of the back 
' The tibia of this species, referred at p. 85, pls. xxv. & xxvt. fig. 5, to Dinornis otidiformis (see also Zocl. 
Trans, vol. iii. 1848, pl. xxv. figs. 5 & 6, pl. xvi. figs. 5 & 6), and the skull referred to Dinornis casuarinus 
(Zool. Trans, vol. iii. pl. u11.), were determined as belonging to the genus Aptornis in 1856 (Zool. Trans. 
vol. iv. p. 62), and have been go labelled in the exhibited series of the fossil remains of birds in the British 
Museum since that date. 

