HuTTON. — On Moa-bones at Kapua. 64:1 



sinuated. The proximal interosseous foramina either open 

 separately on the anterior surface, or into a shallow depres- 

 sion situated above the insertion of the tibialis anticus, and 

 there is no rough tubercle on the inner margin of this depres- 

 sion. The trochlege are much expanded, and the third pro- 

 jects forward more than in any other species. 



The differences between the species depend more on the 

 thickness than on the length of the leg-bones. 



Pachyoknis immanis. 



Palapteryx elephantopus (part), Haast. 

 Dinornis elepihantopus, var. major, Hutton. 

 Pachyornis immanis, Lydekker. 



The number of leg-bones measured was — metatarsi, 18 ; 

 tibiae, 7 ; femora, 9. I cannot distinguish the sternum and 

 pelvis of this species from those of P. elejyhantojncs . 



The diagrams show that, while the metatarsi are diffused, 

 the tibiae and femora tend slightly to concentrate on two 

 points far apart. In the larger form the shaft of the tibia is 

 much curved inwards, but it is nearly straight in the smaller 

 form. This looks as if the species ought to be broken up into 

 tw^o, but the remains are too few to enable me to do so with 

 confidence. In the metatarsus the proximal interosteal fora- 

 mina alwaj's open separately on the anterior surface, and 

 there is no depression above the insertion of the tibialis 

 anticus ; but this does not hold good for bones from other 

 localities. 



It is impossible to distinguish accurately between the 

 metatarsi of this species and P. elephantopus, bat the axial 

 skeleton shows many differences. 



Pachtoenis elephantopus. 



Dinor?iis elephantopus, Owen. 

 Palapteryx elephantopus (part), Haast. 

 Pachyornis elephantopus, Lydekker. 

 Euryapteryx elephantopus (part), Hutton. 



The number of leg-bones measured was — metatarsi, 37 ; 

 tibiae, 30; femora, 25. The width of the sternum below the 

 costal border is 7in. to Sin. The pelvis has a length of about 

 20in., and its width at the antitrochanters is about lOSin. 



Concentration is fairly well marked in the metatarsi and 

 femora, but not in the tibia, which is unusual. In the meta- 

 ta,rsus the proximal foramina open either separately on the 

 anterior surface, or sometimes into a depression. The shaft 

 of the tibia is nearly always straight, and its antero-outer 

 surface is convex. 

 41 



