CTORNIS. 21 



Niltava vivida (Swin/i.), apud Sharpe, Cat. B.M. iv, p. 403 (part ) • 

 Oates, B. B. i. p. 296. 



Niltava oatesi, Salvadori, Ann. Mus. Civ. Gen. (2) v, pp. 514 (1887), 

 578 (1888). 



Coloration. Male. Forehead and lores deep black ; crown, nape, 

 rump, upper tail-coverts, lesser and median wing-coverts shining 

 cobalt-blue: back and scapulars dark bluish black; winglet and 



Fig. 7.— Bill of C. oaf est. 



priinary-coverts black ; greater coverts and quills black, edged with 

 blue ; tail black, the outer webs suffused with cobalt-blue ; region 

 of eye and ear-coverts black, the latter bordered posteriorly by a 

 band of cobalt-blue running up to the nape ; chin and throat 

 black suffused with blue ; remainder of lower plumage, auxiliaries, 

 and under wing-coverts chestnut. 



Female. Forehead, lores, round the eye, cheeks, chin, and upper 

 throat rufous, speckled and irregularly barred with brown; under 

 tail-coverts and a large patch on the throat, the axillaries, and under 

 wing-coverts clear yellowish buff ; remainder of lower plumage 

 ashy olive suffused with buff; crown, nape, and sides of neck 

 ashy brown ; remainder of upper plumage olive-brown with a 

 fulvous tinge ; tail brown, suffused with rufous on the outer 

 webs. 



Legs, feet, and claws dark to blackish brown ; soles yellowish ; 

 bill black ; iris deep brown to reddish chocolate (Hume). 



Length about 7*5; tarsus "7 to - 8; bill from gape about "8. 

 Males from Tenasserim have -wings varying from 3 - 7 to 4, tails 3 

 to 3*7 ; males from Manipur have wings varying from 3*9 to 4, 

 tails 3*1 to 3-3. In the females the wing is 3 # 7, and the tail 2'8 

 to 3-2. 



C. vividus from China differs from the present species in being 

 much smaller, the wing in males varying irom 3-3 to 3*5 and tail 

 2 - 6 to 2-8 ; in females the wing is 3'3 and the tail 2*5. The male 

 has the upper parts of a much more brilliant blue. The female 

 differs merely in size. 



I have examined the type of C. oatesi, and find it the same bird 

 as the one which Hume identified with doubt with c. vividus, and 

 of which there are numerous specimens in the Hume collection 

 from Manipur and Tenasserim. 



There is a female specimen of a Cyorais in the Hume collection 

 from Tenasserim, which I cannot identify with any known species. 

 It differs from the females of C. oatesi and C. vividus, among other 

 things, in wanting the conspicuous yellowish-buff patch on the 

 throat. It is probably the female of an undescribed species, and 



