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Dr. J. Haast on the Extinct 
row and pointed; three intercostals; skeleton altogether of 
a more slender stature than in any of the Palapterygidse :— 
1. Dinornis maximus. 
2. Dinornis robustus. 
3. Dinornis ingens. 
4. Dinornis struthioides. 
5. Dinornis gracilis. 
b. Genus Meionornis*. 
Metatarsus long, no hallux, pelvis narrow, like Dinornis , 
and the whole skeleton altogether more slender than in any of 
the Palapterygidse. Sternum convex, longer than broad, with 
a broad and well-curved anterior border; costal processes 
well developed, no coracoid depressions; bony scapulo-cora- 
coid absent, beak well pointed, and even narrower than in 
Dinornis. 
1. Meionornis casuarinus. 
2. Meionornis didiformis. 
B. Family PALAPTERYGIDSE. 
a. Genus Palapteryx. 
Metatarsus very short and broad, with hallux and hind toe; 
distal trochlese remarkably broad and divergent; tibia with 
both extremities largely developed and standing inward, so as 
to give the skeleton a bow-legged appearance. Pelvis very 
broad and like the bones of the leg, and the rest of a truly 
pachydermal character; bill very obtuse and rounded at the 
tip; sternum flattened, broader than long, with a strong 
costal process, lateral processes standing at a higher angle 
than in any of the Dinornithidse ; no coracoid depressions in 
aged specimens; no bony scapulo-coracoid, two intercostals 
only. 
1. Palapteryx elephantopus. 
2. Palapteryx crassus. 
b. Genus EuryapteryxI*. 
Metatarsus short and broad, but not so pachydermal as the 
* From f.ielov , less, and opvis, bird, 
t From evpvs broad, and anTepvij without wing. 
