Haast.—On the Measurements of Dinornis Bones. - 23 
Thus the metatarsus is a few lines longer; the tibia resembles 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 fully agrees with the specific charaeter 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 grown. May I therefore suggest that 
Nos. 1 and 2 represent, perhaps, male and female, while No. 3 consists of 
specimens of either sex which have not yet attained their full development. 
Dinornis didiformis, 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. didiformis.—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. ILL, plate 24, p. 
249). The tibia is identical with Professor Owen's figured tibia, while the 
metatarsus is two-tenths of an inch shorter than his, although identical in all 
other characteristics : 
Length of Girth of Girth of shaft, Girth of 
one. proximal end. thinnest part. distal end. 
Tarsus metatarsus 7:5 in. 7°3 in. 4r4 in. 92 in. 
TEN . .. Ded. Hi. 39, 89 , 
Femur .. xc "B. 100 ,, 50. 10/8. 
