SERINUS. 179 



a". Crown like the mantle ; stripes 

 on mantle fairly broad ; tail- 

 feathers with yellowish white 

 ends much more strongly 



marked bxUyraceus. ( f 3 



h'^. Crown greyer ; stripes on 

 mantle narrow ; pale ends to 

 tail-feathers smaller or absent, hartlaubi. I f •^ 

 d^. Larger; bill stouter ; no pale ends 

 to tail-feather. (Females and 

 young brown and buff, with only 

 a wash of yellow on the rump, 

 and edges of the quills and tail- 

 feathers), 

 c''. Crown, mantle and lower back 

 more green than yellow ; bill 



slightly smaller flaviventrU, J , aJ. > 



d'^. Crown and mantle yellower; 

 lower back bright yellow ; bill 



slightly larger marshalU. % c" 



b^. Centre of forehead next to the culmen 



greenish like the crown ; sexes similar in 



plumage. 



d'-^. Flanks uniform ; no white feathers on 



the abdomen ; throat brighter yellow 



than the crop. 



e^. Yellower; size smaller; wing about 



3'0 inches imbcrbis. 2- tf ^ _ 



/^. Greener; size larger ; wing about 3 -25 



inches su^ihuratiis. i cc^ 



e". Planks with a few blackish streaks ; a 

 few white feathers on the abdomen ; 



wing about 3-25 inches donaldsoni. -^ c ■> 



b. No yellow on the under surface of the body. 

 c^. Some yellow on the edges of the quills and 

 tail-feathers. 

 /-. A considerable amount of bright yellow 

 on the wings and tail. 

 g^. Under parts uniform. 

 (/*. Bar-coverts white. 



e=. Crown black socotranus, J , ad. >. 



f^. Crown brown socotranus, ? , aJ. r 



h^. Ear-coverts ashy louisce. . 



h^. Under parts streaked. Young of 

 socotramis and louisce. 



