FKTNGTLLTN r. 203 



< 4 . Males with the abdomen and 



breast of quite different colours. 



'"'. Culmen much longer than 



depth of bill at base PYRRHOSPIZA, p. 211. 



b 5 . Culmen about as long- as depth 



of bill at base PROPYRRHULA, p. 210. 



d*. Males with the abdomen and 



breast of the same colour. 

 c 5 . A supercilium present in both 



sexes PROPASSER, p. 212. 



d?. No supercilium present in 



either sex CARPODACUS, p. 219. 



b' 1 . Bill lengthened and slender ; culmen 



straight PROCARDUELIS, p. 223. 



(I. Lateral tail-feathers largely marked with 



white ; tail forked. 

 c'. Bill long, slender and pointed ; a large 



amount of yellow on wings CARDUELIS, p. 225. 



d'. Bill long and thick ; wings spotted 



with white CALLACANTHIS, p. 226. 



e'. Bill short and pointed ; plumage 



streaked ACANTHIS, p. 227. 



e. Both sexes with greater part of plumage 



yellow or green. 



f." Bill small and swollen; culmen curved. METOPONIA, p. 230. 

 (/'. Bill lengthened and sharp; culmen 



straight. 



c". Length of culmen about equal to 

 depth of bill at base ; sexes closely 



alike HYPACANTHIS, p. 231. 



d". Length of culmen about twice depth 



of bill at base ; sexes dissimilar . . CHRYSOMITRIS, p. 232. 



f. Sexes not strikingly dissimilar ; two bars 



on wing- co verts ; throat and breast 

 generally rufous; bill lengthened and 

 straight FRINGILLA, p. 233. 



g. A yellow patch on throat ; no pattern on 



outer webs of earlier primaries GYMNORHIS, p. 235. 



h. Pale margins on outer webs of earlier 



primaries not of uniform width, forming 



two patches, one below primary-coverts 



and one above emarginations. 



h'. No yellow patch on throat and no 



white spots on tail PASSER, p. 236. 



i'. A yellow patch on throat and white spots 



on tail PETRONIA, p. 243. 



t. Tail square, middle pair of feathers as long 

 as the others; quills and tail largely 



white ; no yellow on throat MONTIFRINGILLA, p. 244. 



k. Tail forked and not marked with white ; 

 sexes alike ; plumage occasionally pink 

 on rump and shoulder FRINQILLAUDA, p. 247. 



