176 Dr. A, Hall on the Mammals and Birds 



the belly, and vent and tail coverts white ; wings pale orange ex- 

 cept the dismal ends which verge to slate colour. 



2nd primary longest ; 3rd scarcely a line shorter, and 1st a 

 little shorter than 3rd; tarsus much longer than the middle toe 

 slender ; toes slender ; claws slender, compressed ; outer toe con- 

 nected to inner one at the base. Length about 5 inches ; alar 

 breadth about Y inches. The female has the tints paler, and the 

 orange changes to a yellow. The young birds thus far resemble 

 the female, but in exception they are deficient in the orange tint 

 of the wings, and are paler in other respects. 



S. Buonapartii. Buonaparte's Gnat-catcher. 



v.s.p. Upper mandible blackish-brown; lower one pale at 

 base edged with blackish brown; tarsi, toes and nails pale; eggs 

 unknown. 



Dorsal aspect. Greyish-ash except the crown, the feathers of 

 which are black minutely tipped with grey, and the interscapular 

 space which is faintly olive green. A yellow streak from the 

 nostrils invests the eye, and a black streak from the angle of the 

 mouth proceeds below the eye to the shoulders, where it appears 

 to commence the zone of black spots which cross the chest like a 

 necklace ; auriculars grey ; primaries and secondaries with the tail 

 pale brown. The two former paler on the inner vanes and edged 

 with white towards the quills. 



Ventral aspect. Bright gamboge yellow, only interrupted by 

 a zone of black spots across the chest. These spots are caused 

 by the feathers in that place being tipped with black. Tail and 

 wing coverts whitish. 



3rd primary longest ; 2nd and 4th subequal ; 1st shorter than 

 the 4tb, but longer than 5th. Length 4| inches ; alar expanse 8 

 inches. This bird is rarely met with. The specimen from which 

 the foregoing description is taken, was killed at St. Kemi in the 

 spring of 1858. Is their sufficient difference between this bird 

 and the Sylvia pardalina, to constitute two species of different 



genera ? 



Genus Vireo. 

 Gen. char. Bill short, moderately compressed, curved at the 

 base, with nuchal bristles ; upper mandible curved at the extrem- 

 ity, slightly notched, resembling in this respect the Muscipeta, but 

 differing from the latter in being more compressed, and not at all 

 depressed, in consequence of which it is deeper than broad ; lower 

 mandible a little shorter than the upper, and recurved slightly at 



