222 ROBIN FLYCATCHER. 



first joint of the latter; claws slender, arched, 

 acute; bill blackish; legs pale. Inhabits Pondi- 

 chery, M. Lescherault: labelled in the Museum, 

 " Gobe Mouche Azuron.$ Vaill." 



Total length, in a straight line, about 5| inches ; 

 bill, from the front, T 4 ; wings, 2 T 8 5 ; tail beyond, 

 1 ; tarsus, ^ ; hind toe and claw, ^. 



It is necessary to add, that the name above quoted 

 seems to us erroneous. 



That the analogy of this singular bird to the 

 robin should be illustrated more fully, we shall 

 subjoin the circles of the two groups in which 

 they respectively occur. 



GENUS MUSCICAPA. GENERA OF SAXICOLIN,B. 



Myiagra. Saxicola. 



Muscipeta. Thamnobia. 



Cryptolopha. Gryllivora. 



Hyliota. Petroica. 



Muscicapa. Erythaca. 



Without at present entering into all the details of 

 these two circles, we would apply our preceding 

 observations as strong proofs in support of our 

 belief, not only in the analogy of Muscicapa and 

 Erythaca) which here stand opposite to each other, 

 but in the union of the Muscicapidce, the Sylviadce, 

 and the Ampelidce (the three aberrant divisions of 

 the tribe Dentirostres) into a circular group of their 

 own, quite independent of the other two, which, 

 when united to this, constitutes the whole tribe. 

 In whatever view, therefore, we may take of the 

 Mywgra macroptera, whether as a genuine My'ia- 



