Forms of South- American Birds. 445 



Total length 230 mm., exposed culmen 32, wing 106, 

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



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

 Wing 98 min. 



Hah. Mnunt Roraima, British Guiana. 



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

 McConnell Collection, and were collected by Mr. McConnell 

 at Mount Roraima during his expedition in Oct. 1808. 



Sturnella magna praticola, 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 (i2, tarsus 38, iniddlc toe and claw 33. 



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

 Wing 93 mm. 



Hub. Abary River, British Guiana. 



The ty[)e and the female describ'.d are both in tlic 

 MiCoiinell Collection, and were collected on the Abary River 

 in Sept. 1906. 



Saltator car/anus interjector, subsp. n. 



Adult male. Ditiers from S. caijanus coyanus in being ])alcr 

 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. cayanus hvlivianus. "Bill bluish black; feet brown; 

 iris dark blue" {A. Robert). 



Total length 210 mm., exposed culmen 18, wing 96, tail 88, 

 tarsus 26. 



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



1/ab. Matto Grosso, South Brazil. 



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

 Serra da Cliapada (900 metres), Matto Grosso, in June 1902, 

 by A. Robert, during the Percy Sladen Expedition to Brazil. 



Saltator cayanus bolivianus^ subsp. n. 



Adxdt male. Differs from S. cayanus cayanus in being 

 paler on the under surface, the lower throat cinnamon-buff 

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

 pale 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 wider. "Bill black; feet slate-colour; iris dark 

 brown" (P. 0. Simons), 



