42 BIRDS OF BRITISH GUIANA. 



Key to the Specie s. 



A. Underwing-coverts, axillaries, and fjiiill-lining 



chestnut. 

 a' . Feathers on the fore-neck and breast with 



dark centres C. grlseola, ] ). 42. 



h' . Feathers on the fore-neck and breast 



uniform ; C. grisea, p. 43. 



B. Under wing-coverts and axillaries black ; 



quill-lining grey. 

 c . Primary-quills dark brown ; entire under 



wing-coverts black C. talpacofi, p. 44. 



iV . Primary-qviills cinnamon; greater and outer 



under wing-coverts cinnamon C. rvjlpcn n is, p. 4.j. 



25. Columbina griseola. 

 Spix's Grey Ground-Do vp:. 



Columhina griseola Spix, Av. Bras. ii. p. 58, pi. Ixxv^, 1825 (" in svlvis 

 11. Amazonum ") ; Brabourne & Chubb, B. S. Amer. i. p. 18, no. 175, 

 1912. 



Chamcepflia passen'na (nee Linn.), Cab. in Schomb. Reis. Guian. iii. 

 p. 748, 1848 ; Salvad. Cat. B. Brit. Mus. xxi. p. 473, 1893 (Quonga, 

 Annai) ; Quelch, Timehri (2) v. p. 106, 1891 (Georgetown) ; Lloyd, 

 op. cit. (2) xi. p. 3, 1897. 



Adult male. Back, rump, upper tail-coverts, and tail earlh- 

 brown, outer tail-feathers grey blackish towards the ends ; upper 

 wing-coverts pale vinous with dark violet spots on the median 

 series ; scapulars like the back, with a dark violet mark on the outer 

 webs ; bastard-wing blackish ; primarj'-coverts blackish, bright 

 chestnut at the base ; primary-quills chestnut, outer edges and 

 tips dark brown, the chestnut more restricted to the basal portion 

 on the secondaries, the innermost secondaries like tlie back ; nap3 

 and hind-neck grey with darker edges to the feathers; fore part 

 of head, sides of face, and breast pale vinous, with dark centres <o 

 the feathers on the latter, which imparts a scaled apj)earance, 

 becoming paler and more uniform on the abdomen and sides of 

 the body ; vent and short under tail-coverts white ; thw long under 

 tail-coverts brown mottled and edged with white; axillaries, under 

 wing-coverts, and quill-lining bright chestnut. 



Total length 155 mm., culmen 14, wing 83, tail 55, tarsus 18. 



The above description is taken from an example obtained on 

 the Abary River. 



Adult female. Differs from the adult male in its smaller size 

 and the absence of vinous colour in tie plumage. Wing 77 nnn. 



lh'i'ediii(i-i<ea,<oii. Unrecorded in British- Guiana. 



