18S5.J DURING THE VOYAGE OF THE YACHT ' MARCHESA.' 271 



and the colour shades more gradually into the brownish slate-colour 

 of the back ; the head, neck, and lower parts are also more brownish ; 

 but the differevice, as well as that of the nape, is certainly due, to a 

 great extent at least, to soiling of the plumage. The wings &c. are 

 a little bit darker and more brownish than in your specimen, and 

 there is a more decided metallic bronzy purplish gloss, somewhat 

 mixed with green, over the wings, but hardly perceptible on the 

 back. The measurements are as follows: — Wing 23'0-2.5*4 cen- 

 tims. ; culmen 2'1 centims. ; tarsus 2*9 centims." 



Before visiting the Sulu Archipelago I had found this species in 

 abundance on the island of Cagayan Sulu, off the north coast of 

 Borneo, and Cassiu's specimens were obtained from a small island 

 near Balabac. Its area of distribution is thus somewhat curious, as 

 it has never been recorded from Borneo. 



53. Myristicivora bicolor (Scopoli). 



Myristicivora bicolor, Wald. Tr. Z. S. vol. ix. pt. 2, p. 217; 

 Sharpe, Tr. Linn. Soc. n. s. Zool. vol. i. p. 347; Salvad. Orn. della 

 Papuasia, vol. iii. p. 107. 



Hab. Negros {Meyer) ; Mindanao {Everett) ; Balabac (Steere) ; 

 Sulu {Guilleinard) ; Celebes (Meyer) ; Borneo {Schwcmer). 



a. cJ. Sulu Island. 



b. $ . Sulu Island. 



Iris dark brown ; bill and feet black. Length of wing 21 •6-22*4 

 centims. These examples have no black upon the tibials or under 

 tail-coverts. lu the female the external webs of the first two or 

 three primaries have a white patch at their base, but this is not 

 regular on either side. The same bird has the two internal secon- 

 daries wholly white. 



This species was extremely abundant in Sulu in the month of 

 May, but it was most difficult to secure specimens, owing to the 

 bird's habit of invariably keeping to the summit of the highest 

 trees. 



54. Ianthcenas griseigularis, Walden & Layard. 

 lantkoenas griseigularis, Wald. & Lay. Ibis, 1872, p. 104, pi. 6 ; 



Wald. Tr. Z. S. ix. p. 218 ; Sharpe, P. Z. S. 1879, p. 316. 



Hab. Luzon (Gevers) ; Guimaras (Meyer) ; Negros and Basilan 

 (Everett) ; Sulu (Burbidge). 



Mr. Sharpe says, loc. cit., speaking of a single specimen of this 

 bird brought from Sulu Island by Mr. Burbidge, " I refer this 

 pigeon with some hesitation to I. griseigularis, of which I have 

 never seen a specimen, and only know it from Mr. Keulemans' 

 figure in ' The Ibis ' for 18/2. On the other hand, it is very closely 

 allied to I. albigularis of the Moluccas, but differs in the greyish 

 shade of the white throat, which is also more restricted, and in the 

 forehead being grey with only a slight mark of lilac." 



55. Macropygia tenuirostris, G. R. Gray. 



Macropygia tenuirostris, Wald. Tr. Z. S. vol. ix. pt. 2, p. 218; 



