250 WHITE-BODIED CATERPILLAR-CATCHER. 
formation; but the hill of these is considerably 
depressed. As representing the Glires, the greatest 
number of the species are of a mouse colour, while 
their analogy to the hedgehogs is shown by a pecu- 
liarity in the structure of the feathers almost unique 
in the class of birds. Upon pressing the fingers 
against the feathers of the rump and back, it seems 
as if they were intermixed with little spines or 
prickles, from which circumstance the French have 
termed them Echenilieurs. The curious reader will 
find this singular formation explained at some length 
elsewhere*. 
The most typical examples of this singular race 
inhabit New Holland ; to them we retain M. 
Cuvier’s original name of Ceblepyris ; they are 
known by their superior size — some being nearly 
as large as magpies — and by the great length of 
their wings, which are pointed and reach to the 
middle of the tail. The other group — that M. 
Vieillot’s name should not be lost — we denominate 
Campcphagce , it contains birds smaller in size and 
differently coloured ; the wings are short and 
rounded, and the rictus, or mouth, is furnished 
with a few stiff bristles, indicating that they have 
some of the habits of true flycatchers. Between 
these two groups, but more closely allied to the first 
than to the last, comes the species now before us. 
As it is the only one yet knowm having a decided 
white under plumage, it is easily recognised. 
Size of a starling; but the tail makes it much 
* North. Zool. ii. 129. 
