556 



Mr. G. L. Bates on the 'Reversed 



[Ibis, 



Tympanistria tympanistria. Three specimens examined, 

 none saved. (Text-fig. 9.) 



Major under coverts complete, ten on the manus, and on 

 the cubitus the same number as the remiges, for the wing 

 is eutaxic ; these coverts on the cubitus small, with broad 

 downy fringes at the edges, especially the distal edges. 

 Overlap conforming on the cubitus ; while on the manus, 

 in the more carefully examined specimens, about half of 



Text-figure 9. 



r// 



Diagram of the under wing-coverts of Tympanistria tympanistria 

 with the remiges only indicated. 



1*-10°. Manual major u.w.c. 

 l''-10''. Cubital median u.w.c. which conceal the 

 cubital major u.w.c. 

 a. Carpal median u.w.c. 



these coverts on the proximal part of the manus were found 

 to have the contrary overlap, and the other (distal) half the 

 conforming one. 



Median under coverts large, becoming near the elbow 

 joint more than half as long as the remiges ; present on 

 the cubitus with one besides at the carpal joint ; overlap 

 contrary. 



Chalcoptlia afra. One specimen examined, not saved. 

 Major under coverts complete, ten in number on the 

 manus, the 11th remex having no corresponding covert 

 (? or remiges ten, and major under coverts eleven), thirteen 

 on the cubitus, and wing eutaxic. Overlap conforming except 

 on the proximal half of the manus, where it is contrary. 

 These coverts are small on the cubitus, larger on the manus. 



