274 BLEMENTS OF ORNITHOLOGY. 
eighth family 1 is the Rallide, so called from the Rails’, the Weka 
Rail, Coots”, Moor-hens, and birds of the genus ” Notornis® : 
which enter into it. 
The last family contains but a single genus, that of the 
Trumpeter *. Hence it is termed Psophiide. 
The eleventh order, Galliformes, contains nearly 320 species 
in two extremely unequal suborders—namely, 1. Dysodw and 
2. Galline. 
Their characters may be expressed as follows :— 
Order XI. GALLIFORMES. 
Young born covered with down or feathers ; maxillo-palatines 
not united across the middle line; hallux rather or very larg 
and supplied from flewor hallucts ; nasals holorhinal ; oil-gland 
generally present, tufted, save in the Meg cane sternum 
either perforated to receive the coracoids or else with a quite 
rudimentary keel; sternum with two notches on either side of 
its posterior margin; basipterygoid processes almost always 
present and articulating with the pterygoids as near the pala- 
tines as possible. 
Suborder 1. Dysode. 
Keel of sternum rudimentary; episternal processes perfo- 
rated; hallux very large; oil-gland tufted; basipterygoid pro- 
cesses absent in the adult condition. 
Suborder 2. Galline. 
Keel of sternum well developed; sternum often perforated 
to receive processes from coracoids ; hallux moderate; oil-gland 
sometimes nude, sometimes absent, sometimes tufted. 
There are five families in this order, of which only one belongs 
to the first suborder. 
This first family, Se da contains only the Hoatzin °. 
eS ANE 
4 Pp. 45. 
3 PiGen 
a w 
P. 18. 
P. 94, 
