358 SPOLIA ZEYLANICA. 
Doves—genus 7'urtur—are smallish birds, clad in rather sober 
brown or gray, with small heads, slender necks, and weak 
bills. The wing is long and pointed, the legs short, and the 
foot formed for walking. The sexes are similar. The genus 
(Enopopelia contains one small Dove, which has been placed 
apart owing to the difference in plumage between the sexes 
and the comparatively longer wing. 
Rough Key to Ceylon Columbine. 
A.—Size large ; wing 7°5 inches or over. 
(a) Secondaries barred with black, a metallic lustre 
on neck. 
Columba intermedia (Indian Rock Pigeon). 
(b) No bars on wing quills, plumage iridescent. 
(1) A patch of black feathers with white tips on 
either side of the hind-neck. 
Alsocomus torringtonize (Ceylon Wood Pigeon). 
(2) Mantle chestnut, the hind-neck without a 
mottled patch. 
A. puniceus (Purple Wood Pigeon). 
B.—Size smaller ; wing under 7°5 inches, plumage dull. 
(a) Sexes alike ; second and third wing quills longest. 
(1) A patch of black feathers tipped with gray 
on each side of the neck ; wing 7°25. 
Turtur ferrago (Indian Turtle Dove). 
(2) A collar, round the back of the neck, of 
black feathers, each tipped with a white spot ; 
wing 5. 
T.. suratensis (Spotted Dove). 
(3) A collar of plain black round the back of the 
neck ; wing 6°5, 
T'. risorius (Indian Ring Dove). 
(b) Sexes unlike ; first and second quills longest ; 
wing 5°5. 
(Hnopopelia tranquebarica (Red Turtle Dove). 
