248 EURYLAIMINJE. 



has confessedly the smallest mouth and bill of the 

 whole group. 



If, again, we compare the above five genera with 

 the primary divisions of the family, another harmo- 

 nious series of relations come to light. 



Sub-families of ANALOGICAL Genera of 



the MusdcapidcB. CHARACTERS. Eurylaiminas. 



C Bill exces- ) 



Typical Muscicapinse.... -< sively broad > Eurylaimus. 



C and flat ) 



Sub-typical..Eurylaiimnje.... j BUhnorecon- ) Cymbirhynchll8< 



C Wings length- 1 



Querulinae < ened, feet > Platystoraus. 



C small ) 



f Sides of the ^ 



Aberrant - Psarianae < bill slightly > Psarisomus. 



( compressed.. ) 

 I Wings with ^ 



,Fluvicolinae... -c abruptly vSerilophua. 

 ( pointed quills J 



In order to understand why the genus Cymbirhyn- 

 chus stands opposite the Eurylaimince^ we must 

 remember that it is Eurylaimus which is the pre- 

 eminent type of its own particular circle ; and that, 

 consequently, Cymbirhynchm becomes the sub- 

 typical genus. Platystomus and Querula agree, not 

 only in the general cast of their plumage, but 

 actually in the structure of their lengthened wings, 

 the proportion of their quill -feathers, and in their 

 unusually small feet. It is, in short, by the ap- 

 proximation of these two forms, that the circle of 

 the entire family becomes manifest. Psarisomus is 

 an evident representation of the PsariancB, and 



