154 tTlIEtllDJE. 



Adah male. General colour above dull brown, with a faint wash 

 of olive, inclining to umber-brown on the lower back and upper 

 tail-coverts ; wing-coverts and quills brown, with olive margins to 

 the feathers ; tail-feathers dark brown, with an almost obsolete 

 edging of olive near the base of the outer webs ; lores, sides of face, 

 and ear-coverts like the head ; cheeks light ashy brown, washed 

 with olive, and scarcely darker than the throat, which is dusky 

 yellowish white with a tinge of olive ; fore neck, breast, and sides 

 of body brown, washed with olive, the fore neck slightly more ashy 

 brown ; centre of body, abdomen, and under tail-coverts yellowish 

 white, some of the longer ones of the latter coverts having light- 

 brown centres ; under wing-coverts and axillaries yellowish white, 

 the edge of the ■«'ing ochraceous yellow ; quills dark brown, brownish 

 white along the edge of the inner web ; " bill dark ; feet pale; iris 

 milk-white " (Wallace, MS.). Total length 6-7 inches, culmen 0-65, 

 wing 3-1, tail 3, tarsus O'Go. 



Adult female. Similar to the male in colour, but rather smaller. 

 Total length 6-5 inches, culmen 0-6, wing 2-9, tail 2-65, tarsus 0*65. 



Obs. The colour of the iris seems. to vary considerably in this 

 species, from light reddish yellow {Wallace) to orange-red, pale red, 

 or whity pink (Hume), or crimson and Indian red (Ramsay). The 

 specimen figured in the Plate is one shot by Mr. Wallace, and is 

 marked as having a " milk-white " iris. 



Mr. Hume gives a series of measurements, of which the following 

 are the hmits : — Total length 6-8-7-5 inches, culmen 0-G3-0-73, wing 

 2-8-3-4, tail 2-78-3-27, tarsus 0-65-O75. The females are mostly 

 smaller, but often equal the dimensions of the male. 



Great variation exists in the shade of colour in this species, some 

 specimens being much lighter and others darker ; and this seems to 

 me to be due not only to the more or less perfect plumage in which 

 the bird was in when it was killed, but also to the fading of the 

 skin after death, somewhat in the same way as the skins of the 

 Hypsipetes lose their colour when preserved. On the differences 

 between the present species and P. plumosus, with which it has been 

 sometimes united, Mr. Hume's remarks (Str. F. 1878, pp. 309-312) 

 are conclusive. 



Moore's Olive Bulbul inhabits Java. Sumatra, Borneo, and ex- 

 tends up the Malayan peninsula as high as Tenasserim, where it is 

 sparingly distributed in well-wooded tracks throughout the province 

 south of Tavoy. 



a, b. Ad. sk. East Java. A. E. Wallace, Esq. [C.]. 



c, d. Ad. sk. Sumatra. A. E. Wallace, Esq. fC. |. 



e. (S ad. sk. Sumatra. A. E. Wallace, Esq. [C.]. 



/. Ad. sk. Sumatra (A. R. Wal- F. Godman and O. Salvin, 



Icwe). Esqrs. [P.]. 



g,h. S ad.etjuv.sk. Sarawak. A. E. Wallace, Esq. [C. 



i. tS ad. sk. I'aku, Sarawak. Henry Everett, Esq. C. 



k. (S ad. sk. Bintulu, N.W. Borneo. Alfred Everett, Esq. [C 



I. (S ad. sk. Malacca. A. E. Wallace, Esq. [C._ 



7)1. Ad.sk. Malacca (^;-?^M). India Museum. (Type of 



Microtarsus oliraceus.) 



