Mr. E. Hargitt on the Genus Gecinus. 3 



birds which seem to me to warrant the extension. In addi- 

 tion to the British Museum specimens (including the Hume 

 collection) I have had my own large series to aid me in 

 the conclusions I have come to, which have been arrived 

 at after several years' work. I am indebted to Captain Bing- 

 ham and to Mr. Eugene Gates for many of the specimens 

 which have served to make this paper fairly complete as 

 regards the various stages of plumage described, and I have 

 also to thank these gentlemen for many valuable notes. 



Key to the Species. 



a. Rump green or yellow. 



a\ No yellow nuchal crest ; never any red on 

 the wings. 

 a'^. Under surface of the body perfectly uni- 

 form ; face grey or slightly tinged with 

 green. 

 a^. Nape black ; occiput black, or grey 

 striped with black. 

 a*. Tail black, the central pair of feathers 

 with greyish spots upon both webs ; 

 malar stripe and bill black, 



a^ Crown red occipitalis, <$ ad. 



b^. Crown black, like the occiput and 



nape occipitalis, $ ad. 



A*. Tail entirely crossed by grey ish bars ; 

 malar stripe black ; lower mandible 

 yellow at the base. 



c^ Crown red guerini, S ad. 



cP. Crown and occiput grey, striped 

 with black, sometimes almost en- 

 tirely black guerini, $ ad. 



b^. Nape grey. 



c\ Crown red canus, cJ ad. 



#. Crown and occiput grey canus, 9 ad. 



b^. Under surface of the body more or less 



distinctly varied on the abdomen, flanks, 



and thighs with somewhat V-shaped or 



crescent-shaped dusky markings. 



c'. Face grey, crossed by a whitish stripe 



from the base of the upper mandible 



to the upper extremity of the black 



malar stripe. 



b2 



