212 Dr. J. Haast on the Extinct 



row and pointed ; three intercostals ; skeleton altogether of 

 a more slender stature than in any of the Palapterygidae : — 



1 . Dinornis maximus. 



2. Dinornis robustus. 



3. Dinornis ingens. 



4. Dinornis strut hioides. 



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 Palapterygidae. 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 PALAPTERYGIDiE. 

 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 Dinornithidee ; no coracoid depressions in 

 aged specimens ; no bony scapulo-coracoid, two intercostals 



only. 



1. Palapteryx elephantopus . 



2. Palapteryx crassus. 



b. Genus EuRYAPTERYXf. 



Metatarsus short and broad, but not so pachydermal as the 



• From ixflovi less, and opvis, bird. 



t From (v(jvi broad, and cinrtpv^ without wing. 



