288 Capt. G. E. Shelley on the 



Trocaza laurivora, Bp. Icon. Pig. 1 857, pi. 69 ; id. Compt, 

 Rend, xliii. 1857, pp. 837, 948. 



" Head, neck, and back dull dove-slate, crown and nape 

 glossed with green ; sides of the neck glossed with purplish 

 red and green ; upper surface of the wings slate, with a 

 brownish tinge ; quills dull dark brown; tail dull brownish 

 ashy grey, much paler than in C. boUii, on the central por- 

 tion gradually becoming paler until the tip is light grey; 

 on the under surface of the tail the terminal portion is 

 whitish ; feathers on the throat reddish at the base and 

 tipped with greenish ; rest of the underparts coppery red, the 

 under tail-coverts only being dull slaty blue ; bill red, darker 

 at the tip ; legs coral-red ; iris straw-colour. Total length 

 145 inches, culmen 1"2, wing 8*6, tail 62, tarsus 1"5, middle 

 toe with claw 1'82.^' {Dresser.) 



Hah. Canary Islands. 



IV. TURTUKCENA. 



Turturcena, Bp. Compt. Rend, xxxix. 1854, Type. 



p. 1104 T, delegoryuii. 



Peleioenas, Reichb, Taub. 1855, p. 54 . . T. delegorguei. 



In size and general appearance these birds much resemble 

 Aplopelia ; but in the present genus the back and wings are 

 slate-colour, occasionally partially washed with chestnut. 

 From the relative proportions of the primaries, and from the 

 shortness of the tarsi, they more nearly approach Palumbus. 

 To this genus I shall refer three species, all very rare in collec- 

 tions : — T. delegorguii, which is only known from Natal, and 

 T. malherbii and T. iriditorques, confined to West Africa. 



Key to the Species. 



a. With tlie upper portion of the front of the tarsus 

 feathered close to the knee-joint. Sexes very dis- 

 similar. 

 a\ With a broad white collar at the junction of the 



back of the neck and mantle 14. delegm'guii ^J" . 



6^ With no white collar delegorguii 2 , 



