176 MALTA GRATA. 



along tlie edge of the wing ; quills below ashy olive brown , 

 rather more fulvescent on the inner web. Total length 

 11 inches, culmen 1.2, wing 5.2, tail 5.0, tarsus 1.9. 



Genus Stachyridopsis ^ Sharpe, 1. c p. 597. 



I have placed Salvadori's genus Cyanoderma as a syno- 

 nym of Mixornis (p. 575), This I now find to have been 

 an error , Cyanoderma erythropterum , the type of Salva- 

 dori's genus, not being congeneric with Mixornis, but 

 being absolutely the same as Stachyridopsis ^ which must 

 consequently sink into a synonym of Cyanoderma. 



I entirely overlooked the shape of the nostril in the two 

 genera; for in Mixornis the nasal aperture is ovate, situa- 

 ted in front, while the membrane is posterior, whereas in 

 Cyanoderma and Stachyridopsis it is superior and so swol- 

 len , as to reduce the nasal aperture to a longitudinal , 

 inferior, slit, a formation exactly similar to that of Sta- 

 chyris. The form of the bill is , however, much more slen- 

 der and pointed than in the latter genus and is much 

 more wren-like in structure. 



The genus Cyanoderma , therefore will contain the fol- 

 lowing species : 



1. C. erythropterum (Blyth). 



2. C. hicolor (Blyth). 



3. C. rujiceps (Blyth). 



4. C. rit/i/ro/zs (Hume). 



5. C. poliogaster (Hume). 



6. C. melanothorax (Temm.). 



7. C. pyrrliops (Hodgs.). 



8. C. clirysma (Hodgs.). 



9. C assimilis (Wald.). 



Cyanoderma melanothorax. 



Myiothera melanothorax , Temm. PI. Col. II, pi. 185, fig. 

 2 (1823). 



Notes from tlie Leyden Miuseum, Vol. VI. 



