PROFESSOR OWEN ON THE GENUS DINORNIS. eae 
fossorial anterior digits. But such aliment was doubtless varied by other nutritious 
substances. 
After close comparison of the dried head of Dinornis didinus with those in the 
existing Struthious birds, the characters of which are so admirably given in the 
illustrations of Mr. Sclater’s excellent memoir in vol. iv. of the ‘Transactions’ of the 
Zoological Society, pls. lxvii. a-Ixxvi., pp. 353-364, the Moa isfound to repeat most 
closely, in the form and proportions of the beak, and in the shape, relative positions, 
and dimensions of the narial, orbital, and auditory apertures, the Emus of the 
Australian continent. 
DESCRIPTION OF THE PLATES. 
PLATE LIX. 
Head of Dinornis didinus. 
Fig. 1. Head, with dried integument and portion of neck, left-side view. 
Fig. 2. Head, with dried integument and portion of neck, right-side view. 
Fig. 3. Head, upper view. 
Fig. 4. Hypobranchial tongue-bones, and portion of dried tongue. 
Fig. 5. Area of tracheal ring. 
PLATE LX. 
Foot of Dinornis didinus. 
Fig. 1. Tibial side view of the foot. 
Fig. 2. A metatarsal feather from the same side. 
PLATE LXI. 
Foot of Dinornis didinus. 
Fig. 1. Fibular side view of the foot. 
Fig. 2. A metatarsal feather from the same side. 
(All the figures are of the natural size.) 
