1878.] THE ISLAND OF NEGEOS. 589 



referred by implication C. troglodytes to the C. francica section of the genus ; but a reexamina- 

 tion of a considerable series of C. troglodytes shows that it more properly belongs to the section 

 of which true C. esculenta may be taken as being the type. 



13. Centrococcyx vikidis (64). 



[Valencia, <3 , August. Dumaguete, c^ , August.] 



14. Penelopides panini (08)'? 



[Valencia, ? , August : iris dull chestnut-brown ; orbital and other bare skin white faintly 

 tinged bluish ; bill brown with olive-green tinge ; feet dark lead-grey with a faintish greenish 

 cast; nails black.] 



The single example sent wears the dress of the mature female of P. panini ; but the bill is 

 smooth, without lateral plates, grooves, or casque. The upper tail-coverts are ferruginous and 

 not black. It may belong to a distinct representative form, 



15. Aetamus leucorynus (73). 

 [Dumaguete, c? ? , August). 



16. Gradcalus striatus (74). 



[Dumaguete, d , August. Iris crimson. Valencia, ? , August. Iris crimson ; bill black ; 

 legs grey-black.] 



Of four examples three ( 6 ) have the throat and upper breast uniform slate-colour, the 

 remainder of the lower plumage, the uropygium and upper tail-coverts being broadly banded 

 with black and white. One example (marked ? ) differs by having the entire lower plumage 

 banded with black and white. 



17. Volvocivora ■? c^rulescens (75)^ 



[Valencia, c7 , August : iris dark chocolate ; bill black ; legs blackish grey.] 

 A single example of a bird (marked d ) which I provisionally refer to the above species is 

 sent from Negros by Mr. Everett. It differs from every example in my series from Luzon and 

 Zebu in having a longer and larger bill, in being dark ashy grey above, without any dark brown 

 almost black margins to the feathers, the uropygium and upper tail-coverts being of still paler grey, 

 in being below pale grey and not dark iron-grey, in having the major wing-coverts pure white 

 and the tertiary quills broadly margined with pure white, and in having the two outer pairs of 

 rectrices broadly tipped with white and some of the other rectrices slightly white-tipped. The 

 under tail-coverts are also almost pure white. The general dimensions are about equal in all. 

 The adult males of V. coerulescens are jet-black ; the adult females are dark plumbeous grey 

 (conf. P. Z. S. 1877, p. 759. no. 23*), while this bird is pale-coloured. V. coerulescens is as yet 

 only known to inhabit Luzon and Zebu; and this may possibly belong to a representative form. P.Z.S.1878, 

 But as it may also be V. cmrulescens in first plumage, I refrain from bestowing on it a distinct ^'' ^^'*' 

 title. 



* lAated, p. 533. — Ed.] 



4q 



