Forms of South- American Birds. 445 



Total lengtli 230 mm., exposed culmen 32, wing lOG, 

 tail 70, tarsus 38, middle toe and claw 33. 



Adult female. Similar to the adult male, but smaller. 

 Wing 98 mm. 



Hah. Mount Roraimn, British Guiana. 



The type, as also the female described, are botli in the 

 I\IcConnell Collection, and were collected by Mr. McConnell 

 at Mount E-oraima during his expedition in Oct. 1898. 



SturneUa magna jyralicola, subsp. n. 



Adult male. Differs chiefly from S. magna monticola in its 

 smaller size, brighter coloration on the under surface, and 

 more white in the tail. 



Total length 225 mm,, exposed culmen 30, wing 101, 

 tail G2, tarsus 38, middle toe and claw 33. 



Adult female. Similar to the adult male, but smaller. 

 Wing 93 mm. 



Hab. Abary J-tiver, British Guiann. 



'I'he type iuid the ft-male described are both in the 

 MrC'iunell Collection, and were collected on the Abary lliver 

 in Sopf. 190G. 



Saltator cay anus interjector, subsp. n. 



Adult mole. Differs from S. cayanus cayanus in being paler 

 grey on the sides of the face, sides of the neck, and sides 

 of the body. It is darker, however, on these parts than 

 S. cayaniis holivianus. "Bill bluish black; feet brown; 

 iris dark blue" {A. Robert). 



Total length 210 mm., exposed culmen 18, wing 90, tail 88, 

 tarsus 26. 



Adult female. Similar to the adult male. Wing 95 mm. 



llah. Matto Grosso, South Brazil. 



The type, which is in the British Museum, was collected at 

 Serra da Chapada (900 metres), Matto Giosso, in June 1902, 

 by A. Itobert, during the Percy Siaden Expedition to Brazil. 



Saltator cayaniis bolivianus^ subsp. n. 

 Adidt male. Differs from S. cayaniis cayaniis in being 

 ])aler on the under surface, the lower throat cinnamon-buff 

 instead of fawn-colour, the breast, sides of body, and thighs 

 jjale ash-grey instead of dark lead-grey, the abdomen cream- 

 white instead of pale buff; the under tail-coverts and under 

 wing-coverts are also much paler, and the white supraloral 

 streak w ider. " Bill black ; feet slate-colour ; iris dark 

 brown" (P. 0. Simons). 



