CLIMBING LEAFLOVE. 
272 
although there are four divisions, the sutures are 
quite smooth ; the tail is semi-transparent and 
rounded, and of that peculiar texture and form 
which belongs to Analates. 
The immediate passage from a terrestrial to a 
climbing species of the very same sub-genus can 
be proved natural, both from analogical reasoning 
and from undeniable fact. The manners of Ph. 
terrestris , as described by Le Yaillant, are those of 
a rasorial bird ; a hen, for example, which scratches 
and throws about leaves, straw, &c. “ both with its 
bill and feet,” while searching for its food. This is 
the peculiar habit of rasorial types, such as we see 
in Phyllastrcphus terrestris , and every one knows 
that the scansorial and the rasorial forms are but 
representations of each other. 
Nor are we unprepared with proofs of this theory 
drawn from recorded facts. The Accentor modularis , 
or hedge-sparrow, is a counterpart of Ph. terrestris; 
both live in the same way, and seek their food 
on the ground under thickets and among fallen 
leaves ; and both also are followed by species 
which are absolutely scansorial. The A. alpina, as 
Dr. Thackary observed*, can creep round the but- 
tresses and projections of a building “ very much 
in the manner of a tree-creeper.” This scansorial 
power, we have not the slightest doubt, belongs also 
to our Ph. scandens. It is impossible that two cases 
can be more analogous. 
* Communicated through my friend Professor Henslow of 
Cambridge. 
