114 ZOOLOGICAL EXERCISES. 
List of the Lizards inhabiting New Zealand.—Buller, Trans. N.Z. Inst., 
ITI., p. 4. 
List of the Lizards of Australia and New Zealand.—Gunther, Voy, 
_ Erebus, and Terror. 
On Hatteria.—Gunther, Philosophical Transactions, 1867, p. 595. 
The Tuatara Lizard.—Buller, Trans, N.Z, Inst., IX., p. 317; X., 
p.220; XL, p. 349. 
The Phyisology and Anatony of the Tuatara.—Newman, Trans. N.Z. 
Inst., X., p. 222. 
Description of a new Lizard.—Buller, Trans. N.Z. Inst., [X., p. 326. 
The fossil reptilia of New Zealand.—Hector, Trans, N.Z. Inst., VI., 
p. 333. 
Notes on the Lizards of New Zealand.—Hutton, Trans. N.Z. Inst., 
TV oipy 26%, 
AVES.— Heart with two ventricles and two auricles; 
oviparous; the fore limbs never have more than three 
digits, and the hind limbs never more than four; the 
body is covered with feathers. 
In all birds except the Saurure the metatarsals are 
anchylosed together. In all except the Odontotorme the 
anterior faces of the centres of the vertebrez are excavated 
from above downwards, and convex from side to side, while 
the posterior faces are convex from above downward, and 
excavated from side to side. 
Birds and reptiles are generally united together into a 
division called Sawropsida, they have the following points in 
common: There is only one occipital condyle; each ramus 
of the mandible is composed of several pieces, and is con- 
nected with the skull by a quadrate bone; the ankle joint 
is between the proximal and the distal divisions of the tarsus. 
Aortic arches usually two or more, but sometimes one, which 
then belongs to the right side. The aves are divided into 
five sub-classes. 
Saurure Caudal vertebree produced into a 
