TOD US. 
172 
between Eurystomus , Todus, and one of the types of 
Alcedo, as well as with Eurylaimu* and Muscicapa, 
all flat-billed groups. But there is as much difference, 
in other respects, between Eurystomus and Todus, 
as there is between Platyrhynchus cancromus and 
Eurylaimus. They are all, in fact, either directly 
or indirectly, fissirostral types, whatever may be 
their local rank in relation to other groups : and if 
the form of the bill was to decide the location of a 
bird, all these, nay, the whole of the fissirostral 
types throughout ornithology, might, on such a 
principle, be placed by themselves in a distinct 
division. But before proceeding further, we shall 
annex the figures and descriptions of three of the 
most remarkable birds just mentioned. 
