Haast. — On the Measurements of Diuornis Bones. 23 



Thus the metatarsus is a few Hues longer ; the tibia resemhles the former 

 closely, except that it is slightly thinner and one-tenth of an inch shorter ; 

 the femur is exactly like Professor Owen's casuarinus, so that it may be said 

 that this size fuUy agrees Avith the specific character of his species. 



The articulated skeleton in the Canterbury Museum is taken from this 

 subdivision. 



No. 3. Din. casuarinus, Owen. — Smallest size. 



The bones of this variety agree in every respect with those of the fore- 

 going subdivisions, except that they are somewhat, smaller. 



Compared with Professor Owen's drawings, the metatarsus is more 

 slender, as is also the case with the tibia, which is three-tenths of an inch 

 shorter, and the same may be said of the femur. Moreover, the bones are 

 altogether smoother, and the line of coalescence of the proximal epiphysis is 

 still sometimes faintly indicated : they belong, therefore, without doubt, to 

 specimens which were not yet full grov/n. May I therefore suggest that 

 Nos. 1 and 2 represent, perhaps, male and female, while Ko. 3 consists of 

 specimens of either sex which have not yet attained their full development. 



Dinornis cUdiformis, Owen. 

 According to my measurements, the same difference of size is also 

 strikingly shown by the specimens of this species, of which a great quantity 

 of bones was excavated under my direction. 



When put together, these formed also three distinct sizes, like the 

 preceding species, with no gradations between them. 



We obtained from our excavations portions or complete leg bones of 

 No. 4, largest size, 17 specimens. 

 No. 5, middle size, 12 specimens. 

 No. 6, smallest size, 8 specimens. 



No. 4. Din. dicliformis. — Largest size. 

 The femur of this subdivision resembles very much that of dromioides, 

 Owen, both in shape and size. It is somewhat larger than Professor Owen's 

 figured specimen of didiformis ("Trans. Zool. Society," "Vol. III., plate 24, p. 

 249). The tibia is identical Avith Professor Owen's figured tibia, Avhile the 

 metatarsus is two-tenths of an inch shorter than his, although identical in all 

 other characteristics : 





Lengtli of 



Girtli of 



Girtli of sliaffc, 



Girth of 





bone. 



proximal end. 



thinnest pai-t. 



distal end, 



Tarsus metatarsus 



7-5 in. 



7-3 in. 



4-4 in. 



9-2 in. 



Tibia 



15-C „ 



11-1 „ 



3-9 „ 



8-9 „ 



Eemur ... 



9-6 „ 



10-0 „ 



5-0 „ 



10-8 „ 



