104 



Size nearly similar ; wingQ (Merida) 6 ; tail 

 3.75 in. ; $ wing G.20 ; tail 4 in. ; wing c^ 

 (Guiana) 5.90-6 ; 2 wing 6.20-6.40 in. ; 

 below with the sides of breast and flanks 

 chestnut rufous [pure white in Bahia birds] ; 

 thighs darker rufous in Venezuelan birds 

 [but hardly more so in Guianan birds] ; fore- 

 head and sides of face slightly yellower and 

 paler. 

 252a. Gamjisonyx swainsoni meridensis subsp. nov. Venezuela 

 [(^ Nevada, Merida, Nov. 15, 1903, alt. 3,000 (S. to 

 metres, in coll. H. K. Swann and Merida Orinoco*), 

 and Guiana examples in Tring Mus. and British 

 Brit. Mus.] Guiana. 



Northern Pearl Kite. 



" Upper surface darker and more strongly 

 shaded with slaty grey ; forehead and sides 

 of face straw colour instead of orange buff " ; 

 total length 9.10 in. ; wing 0.20 ; tail 3.75 

 in. ; [sides of breast and flanks rufous.] 

 252b. Gampsomjx swainsoni leonce Chubb, Bull. Nicaragua. 

 B.O.C., xxxix., p. 22 (1918). [Leon, Nicar- 

 agua, W. B. Richardson, Dec. 1892, type in 

 Br. Mus.] 

 Nicaraguan Pearl Kite. 



Largest ; " differing from G. s. swainsoni onlj^ 

 in the larger wing and tail measurements " ; 

 ^ total length 9.65 ; wing 6.95 ; tail 4 in. ; 

 $ wing 6.9 in. [Differs from G. s. swainsoni 

 also in having sides of breast and flanks 

 rufous.] 

 252c. Gampsonyx swainsoni magnns Chubb, Bull. W. Peru 

 B.O.C., xxxix., p. 21 (1918). [Amotape, Pern, and W. 

 July 22, 1899, P. O. Simons, type in Br. Mus.] Ecuador ; 

 Western Pearl Kite. Bolivia ?t 



Gen. LXXV. ICTINIA Vieill. (1816). 



Upper mandible with the cutting edge lobed, but 

 without a true tooth ; bill short and deep, and 



* Examples from the Orinoco aj-e more or less intermediate. Of those 

 in Tring Mvis. two have the sides strongly rufous, others only slightly. 



t An example in Tring Museum from Prov. of Sara, Bolivia, ^ has wing 

 measurement of 6.65 in. and presumably belongs to this form ; another, $, 

 from Calama River, Rio Madeira, has the wing 6.50 and is intermediate. 



