98 DISTRIBUTION OF ANIMALS. [PART 1. 
The Anseres or Natatores are almost equally unsettled. The 
flamingoes are usually placed in this order, but their habits best 
assort with those of the waders. 
Fam. 
118. Anatide Duck and Geese. 
119. Laridze Gulls. 
120. Procellariide Petrels. 
121. Pelecanide ... Pelicans. 
122. Spheniscidee Penguins, 
123. Colymbidee Divers. 
124, Podicipide ... Grebes, 
125. Alcidze : Auks. 
The last order of birds is the Struthiones or Ratitee, considered 
by many naturalists to form a distinct sub-class. It consists of 
comparatively few species, either living or recently extinct. 
Fam. 
126. Struthionide Ostriches. 
Living ¥ 127. Casuariide ... Cassowaries. 
128, Apterygide ... Apteryx. 
129. Dinornithide Dinornis. 
Extn) 130. Palapterygide Palapteryx. 
131. Apyornithide A®pyornis. 
REPTILES. 
In reptiles I follow the classification of Dr. Giinther as given 
in the Philosophical Transactions, vol. clvii., p. 625. He divides 
the class into five orders as follows :— 
Sub-classes. Orders. 
1. Ophidia Serpents. 
I, Squamata ... $2 Lacertilia Lizards. 
3. Rhyncocephalina The Hatteria. 
II, Loricata : 4, Crocodilia Crocodiles. 
III, Cataphracta 5. Chelonia Tortoises. 
In the arrangement of the families comprised in each of these 
orders I also follow the arrangement of Dr. Giinther and Dr. 
J. E. Gray, as given in the British Museum Catalogue, or as 
modified by the former gentleman who has kindly given me 
much personal information. 
