Family 112. — RHIXOCHETIDtE. (1 Genus, 1 Species.) 
General Distribution. 
Neotropical 
Sub-regions. 
N EARCT1C 
Sub- regions. 
Pal^arctic 
Sub-regions. 
Ethiopian 
Sub-regions. 
Oriental 
Sub-regions. 
Australian 
Sub-regions. 
j 
The genus Rhinochetus (1 sp.), consists of a singular bird 
called the Kagu, which inhabits New Caledonia., an island 
which may be placed with almost equal propriety in our 1st, 
2nd, or 3rd Australian sub-regions. It is a bird of a bluish 
ash-colour, with a loose plumage, partaking something of the 
appearance of Hail, Plover, and Heron, but with peculiarities of 
structure which require it to be placed in a distinct family. 
Its anatomy shows that its nearest allies are the South American 
genera, Eurypyga and Pmyhia. 
Family 113. — ARDEIDHL (5 Genera, 80 Species.) 
General Distribution. 
Neotropical 
Nearctic 
I Palasarctic 
Ethiopian 
[ Oriental i 
Australian 
Sub-regions. 
Sub-regions. 
Sub-regions. 
Sub-regions. 
Sub-regions. | 
Sub-regions. 
1 .2 . 3 . 4 
1 . 2 . 3 .4 
1 . 2 . 3 .4 j 
1 . 2 . 3 . 4 
1 . 2 . 3. 4 
1 . 2.34 
i 
The well-known Herons and Bitterns are found in every 
part of the globe, and everywhere closely resemble each other. 
Omitting the minuter sub-divisions, the genera are as follows: — 
Ardm (60 sp.), cosmopolitan ; Botaurus (6 sp.), almost cos- 
mopolitan ; Tigrisoma (4 sp.), Tropical America and West Africa; 
NycUcorax (9 sp.), cosmopolitan; Concroma (1 sp.), Tropical 
America. 
