156 MR. W. p. rVCRAFT ON THE USTEULUGY [Fel). -0, 



Sub-order Tracueophoxe.'E. 

 Fam. 1. Furnariidye. 



8ub-fam. 1. Furnariiiia\ 

 ,, 2. tScleruriiui". 



,, o. Synallaxinu'. 



,, 4. Phyli(lorliin:e. 



Faui. 2. Pteroptochi(lit>. 

 ,, 3. ])endl■oco]apti(la^ 

 ,, 4. Couopopliagida'. 

 ,, 5. Forniicariidaj. 



My aiiieiidmeiits to this scheme iiniouut to tliis - i ])it>pu.se to 

 alter the balance and composition of his families 2-5, iii-r;ingiiig 

 them as follows : — 



Sub-order Tracueophoxe.e. 

 Fam. 1. Formicariid;e. 

 ,, 2. Dendrocolaptida-. 

 ,, 3. Furnariidje. 



Sul)-fam. 1. Furnariiiuv. 



?; 



2. Selerurinte. 



!? 



3. Synallaxina\ 



?1 



4. Margarornithina', 





5. Phylidorhina-. 



Fam. 4. Cone 



)po]jhagida3. 



Sub fam, 



, 5, Conopophaginpa. 



" 



6. Pteroptochinie. 



n 



7. Hvlactina). 



Fam. 5. Xenicidre. 



In this Su))-order all but the Xenicidse have a tracheal syrinx ; 

 and this is remarkable for the presence of a lateral cartilaginous 

 pillar set on to the bi'onchial ring by a broad base. In some 

 geneiu this })illar is extremely well developed ; in others it is but 

 small, and may be wanting as in Conopophaga, though this genus 

 has hitherto been desciibed as possessing this '■'■ processits vocalis" 

 As to the development of this process in the Dendrocolaptidaj — 

 corresponding to the Dendrocolaptinse of Sharpe's ' Hand-li.st,' 

 which includes about eleven genera — nothingseemsto beknown. In 

 the references to the syrinx of the " Dendrocolaptida? " which ha^•e 

 from time to time been made, this covering title has included both 

 Furnariine and Synallaxine types. These references indeed, in 

 nearly all cases, appear to be based on Miiller's dissections (6), who 

 does not seem to have examined any strictly Dendi'ocolaptine types 

 in this connection. 



All the Tracheophoueje are holorhinal except the Fnrii;uiiu;e, 

 which are schizorhinal. 



Conopophaga, as Forbes insisted long ago (2), has nothing to do 

 wdth the Furnariine, but seems to approximate towards the 

 Formicariine types. While Sharpe regards it as entitled to rank 

 as a Familv bv itself, it seems to me that we shall be nearer the 



