187 
more slender-legged emeu. The marked trilateral character of 
the transverse section of the upper- half or two-thirds of the bone, 
and the deep longitudinal grooving of the corresponding anterior 
surface, constitute conspicuous features and, to some extent, 
further points of resemblance to both emeu and cassowary. The 
hypotarsus is thick, prominent and undrvided. 
No sign of the attachment of a hallux appears. 
TaB_e III. 
Table showing comparative measurements of the tarso-metatarsi 
of Genyornis newtoni, Dinornis nove-hollandiw (ingens), Owen, 
and D. gracilis, Owen. 
Dinornis novee- : : Fs 
Genyornis UIA: Diners orcs 
eny ITINIS holland, Owen. LNOTIAS grac s 
es newtont. D. ingens, Owen. Owen. 
| Inches. Mm. Inches. | Mm. Inches. Mm. 
Length ts ik BO ioeseS 132 | 348 1Sondms29 
DP cuntier ence at aida . | oe £35 44 | 114 41 107 
Breadth (tranverse) of distal 
end”... | 34 88 4! 114 44 107 
Transverse breadth at middle i 47 1's 40 15 40 
Antero-posterior breadth at | 
middle re iS Hird, 38 iz 32 1; | 30 
Breadth of proximal ces, 34 oD 3t 88 32 84 
The Genyornis tarso-metatarsus does not belong to the same 
bird as the femur and tibio-tarsus. The DS ae SB of the 
other bones are from Owen’s table. 
Toes.—The toes of the tridactyle foot are remarkably short in 
comparison to those of the Dinornithide, the middle one being 
only just as long, and the inner and outer hardly more than an inch 
longer than the respective digits of the emeu. In relative size 
they conform to the proportions of the corresponding trochlew, 
and in the great slenderness of the inner toe we have another 
point of resemblance to Dromeus. This digit is further charac- 
terised by the lateral compression and great relative length of its 
proximal phalanx ; the lengths of the three proximal phalanges 
of an average specimen being as follows:—Inner, 80 mm.; middle, 
75 mm.; outer, 65 mm. The phalanges of the middle and outer 
toes, on the contrary, are characterised by their breadth and 
depression. The, ungual phalanges, in particular are small, 
short and flat—features which are in marked contrast with the 
long, pointed and curved, conical claw-bearing phalanges of the 
Dinornithide, or even of those of the emeu and cassowary. In 
conformity with the shape of the constituent segments (except 
