PSITTINUS. 250 



of the quills black except at the tips, which are dark green ; rump 

 and upper tail-coverts bright green ; middle tail-feathers blue, 

 edged and tipped green, outer feathers green with some blue along 

 the shafts, all dull yellow below ; lower parts green, the breast and 

 throat yellower. 



Female. Head and body above nearly uniform green, the red 

 cheeks duller than in the male, and the mandibular stripes in part 

 tinged with green ; otherwise as in the male. 



Young birds resemble the female. 



In males the upper mandible vermilion, yellow at tip, lower 

 horny black, yellowish horny, or dingy red; in females both mandibles 

 are blackish, in very young birds of both sexes dull red. Irides 

 yellow, creamy white, or pale brown ; orbital skin greenish brown; 

 legs dull earthy or brownish green (Hume). 



Length about 19 ; tail 11 ; wing 7*5 ; tarsus *75 ; bill from 

 gape -9. 



Distribution. The Nicobar Islands. 



Habits, $c. This Paroquet abounds throughout the Nicobar 

 group, chiefly in small flocks. Young birds were found in the 

 nest-holes by Davison in February and early in March. 



1148. PalaBOrnis tytleri. The Red-cheeJced Andaman Paroquet. 



Palseornis erythrogenys, apud Blyth, Ibis, 1860, p. 99 ; 1868, p. 132 

 1873, p. 79, note ; Beavan, Ibis, 1867, p. 319 ; Ball, J. A. S. B. xli, 



pt. 2, p. 279 ; id. S. F. i, p. 60 (part.) ; Walden, Ibis, 1873, p. 298. 

 Palseornis nicobaricus, apud Walden, P. Z. S. 1866, p. 555 ; Ball, 



J. A. S. B. xxxix, pt. 2, p. 241 ; nee Gould. 

 Palseornis affinis, Tytler, Beavan, Ibis, 1867, p. 320; Blyth, 7&w, 



1868, p. 132 ; Hume, S. F. ii, pp. 9, 24, 184 ; nee Gould, 1858. 

 Palaeorms tytleri, Hume, Proc. A. S. B. 1874, p. 108 ; id. S. F. ii, 



p. 454 ; id. Cat. no. 152 ter ; Salvadori, Cat. B. M. xx, p. 474. 



The male only differs from that of P. erythrogenys in being of a 

 less yellowish green ; the upper back and interscapulary tract are 

 much bluer, and there is a bluish tinge on the breast. In females 

 the mandibular stripe is green throughout. The size of P. tytleri 

 is rather less. Length of males 15-5 to 18'5, tail 9 to 10-5, 

 wing 7 ; of females, length 15, tail 7, wing 675. 



Distribution. The whole Andaman group, including Barren Island, 

 Narcondam, the Cocos, and Preparis ; common everywhere. 



This and the last species are only just separable, but the 

 distinctions, small as they are, appear to be quite constant. 



P. longicauda, from the Malay Peninsula, Sumatra, and Borneo, 

 is an allied species ; and a still more nearly related form is 

 P. modesta, from Engano, off the S.W. coast of Sumatra. 



Genus PSITTINUS, Blyth, 1842. 



Size small. Tail less than half as long as wing, and rounded 

 at the end ; bill as in Palceornis. 



This genus consists of a single species found in the Malay 

 Peninsula and islands, and ranging into Tenasserim. 



s 2 



