MUSCICAPA. 
197 
while those retained under the name of Muscipeta 
seem to he equally spread over Asia and Africa ; 
although we have not yet seen any from New 
Holland. Having now prepared the reader to 
understand the general nature of the group before 
us, we shall at once proceed to its divisions or sub- 
genera, distinguishing them by the following names : 
1. Cryptolopha; 2. Muscipeta; 3. Mytagra; 
4. Muscicapa ; and, 5. Hyliota. The first, fourth, 
and fifth form the aberrant group, already distin- 
guished from those two which are typical, by their 
more narrowed bill, by the superior length or 
strength of their feet, and by the terminal half of 
the bill being laterally compressed: a structure 
which carries with it a proportionate increase of 
strength and thickness in the under mandible, so 
that its ridge or gonyx is often curved upwards. In 
the typical sub-genera neither of these latter charac- 
ters are seen ; the whole of the bill is depressed, 
and the under mandible is very flat. 
