% 
Key to the Species. 
A. Larger; wing, 148 mm.; tail, 110; breast blue- 
grey ; throat white, encircled with black . . . . G. scripta, p. 163. 
B. Smaller ; wing, 136 mm. ; tail, 101 ; breast vinous- 
grey with a patch or grey feathers on the upper 
portion ; throat not encircled with black . . . . G. smithii, p. 166. 
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