554 Mr. G. L. Bates on the Reversed [Ibis, 



Chrijsococcyx flavigularis. Three specimens examined, all 

 in immature plumage, Nos. 5660, 5683 & 5878. 



Major under coverts complete, ten on the manus (manual 

 reiniges also only ten), and nine on the cul)itus ; overlap 

 conforming on the cubital and distal portion of the manus, 

 contrary on the other part of the manus. 



Median under coverts none. 



Chnjsococcyx smaragdineus. Eight specimens examined, 

 Nos. 5611, 5642, 5670, 5882, 5889, 5911, 5913, and 

 one not saved. 



Major under coverts a complete row, numbering ten on 

 the manus (remiges also only ten), and about ten oti the 

 cubitus. They are conforming on the cubitus except 

 sometimes near the carpal joiut ; and on the distal part, 

 sometimes more, sometimes less than half, of the manus ; 

 and contrary in overlap in the part of the row between, 

 whether on the proximal part of the manus only, or on 

 this with some adjacent feathers on the cubitus. 



Median under coverts none. 



In the large number of specimens examined, belonging to 

 tw^elve species, of the Cuculidae, there was never any trace of 

 a second or median row of reversed under coverts ; in this 

 they agree with the MusophagicUie. But while in the last- 

 named family the siugle row of reversed coverts always has 

 the conforming overlap in its whole length, in the Cuculidse 

 there are generally two changes, and always at least one, in 

 the manner of overlapping, between the base and the tip 

 of the wing J the conforming overlap being found on the 

 proximal portion or the whole of the cubitus, and generally 

 also on the distal portion of the manus, while the feathers 

 forming a continuous section of the middle portion of the 

 row lying either wholly on the manus or on that and 

 the adjacent part of the cubitus have the contrary overlap. 



Vinago calva. Four specimens examined, none of them 



saved. 

 Major under coverts a complete row, ten (?) on the manus, 

 and about twelve on the cubitus. Wing diastataxic. Those 



