188 ANATID^. 



wing-coverts, quite dis- 

 tinct. 

 g'*. Speculum purple-blue or 



violet hoscas $ , p. 189. 



h^. Speculum greenish blue 



or bluish green wi/viUiana $ , p. 196. 



»°, Speculum green diazi, p. 204. 



d^. A very distinct black band 

 through the eyes. 

 e^. Sides of the head and neck 

 rufous ; plumage almost uni- 

 form brown-grey luzonica, p. 205. 



_p. Sides of the head and neck 

 not rufous ; general plumage 

 distinctly mottled ; speculum 

 metallic green; no white 

 band anteriorly to the specu- 

 lum siqjercUiosa, p. 206, 



£?*. Outer web of tertials more or less 

 broadly white ; terminal portion 

 of the upper mandible yellow, 

 e'. Speculum metallic green ; a 

 broad white subapical band on 

 the last row of the upper wing- 

 coverts, anteriorly to the spe- 

 culum ; mandible at the fore- 

 head red ; breast white, with 

 conspicuous black round spots ; 

 the whole of the outer web of 



tertials white pwcilorhyncha, p. 209. 



y. Speculum metallic blue, more 

 or less with a greenish lustre ; 

 no white band anteriorly to 

 the speculum ; no red spots at 

 the base of bill ; feathers of the 

 breast brown, but not conspicu- 

 ously spotted on a white 

 ground ; only the apical portion 

 of the outer web of the tertials 



white zonorhyncha, p. 211. 



d'". Bill yellow, with a distinct longi- 

 tudinal black patch on the culmen ; 



speculum green undulata, p. 212. 



d" . Conspicuous white bars across the 

 tail, upper tail-coverts, scapulars, and 



tertials sjyarsa, p. 213. 



d'. Wing-speculum coppery -red. 



e' '. Tail moderate ; a broad white patch 



between the bill and the eyes sppcularis, p. 215. 



/". Tail rather long, approaching that of 

 Dctfila ; nape with a pendent crest ; 

 no white patch between the bill and 

 the eyes (not typical) cristata, p. 216.* 



* The short diagnosis of the following species, pubHshed by me, was taken 

 from a female bird ; but having since examined immature males in the Pans 

 Museum, I find tliat their central teil-feathers have a tendency to;curl up, 



