174 Journal of Hie F.M.S. Museums. [Vol. VII. 



d-e. 4 3,i ?. Telok Wau, Terutau. 20th-28th 

 December 1916. [Nos. 3675, 3697, 3700, 

 3720, 3778.] 

 " Iris chestnut, bill black, feet slate." 



Extremely common in the north of the Peninsula, largely 

 replacing P. aitalis, which however also occurs: rare and 

 sporadic in the south. 



86. Pycnonotus plumosus, BIyth. 



Sharpe, tout. cit. p. 152 ; Robinson and Kloss, p. 58. 

 a-e. West side, Pulau Telibun. i-3rd. January 

 1917. [Nos. 3802, 3828, 9.] 

 " Iris chocolate, reddish or dark red, bill black, feet 

 pinkish brown." 



This, is the only one of this group of the genus about 

 which no difficult}' arises in identification. Colouration is on 

 the whole verv constant, though freshly moulted specimens are 

 darker above than others. Tail and wings always strongly 

 washed with olive green and the ear-coverts with pale shaft 

 stripes. 



87. Pycnonotus simplex (Less.). 



Sharpe, torn. cit. p. 153: Robinson and Kloss, p. 58; 

 Richmond, Proc. U. S. Nat. Mus. 26, p. 506 (1 903.1. 



Pycnonotus sp. (?) Richmond loc. cit. p. 506. 

 Pycnonotus olivaceus chloeodis, Oberhoher, Smitlisonian 

 Misc. Coll. vol. 60, p. 11 (1912). 



a-c. 3?. Telok Wan, Terutau. 20-29th Decem- 

 ber 1916. [Nos. 3677. 3732, 3794.] 

 " Iris Indian red, bill dark horn, feet pinkish yellow- 

 horn." 



I have compared these and numerous other Malayan birds 

 with three specimens from the West Coast of Sumatra which 

 can be regarded as typical of P. simplex (Less.) and also of 

 P. olivaceus chloeodis, Oberholser, and can detect no material 

 differences, certainly none that would warrant even subspecific 

 distinction. 



The wings of three Sumatran birds are 76, 77, 82, while 

 nine Malayan birds average 81 mm. The Sumatran bird 

 cannot therefore be said to be "larger." 



The colour of the irides, relied on by Richmond for 

 separation of species, is quite unreliable. Two Sumatran birds 

 recorded by myself have them " white " and a third by Jacob- 

 son " light orange," while the Terutau birds had them as noted 

 above " Indian Red," but they are undoubtedly all the same 

 form. 



In any event the Sumatran bird, if distinct, must be called 

 P. simplex simplex (Less.) while the Malayan bird (type from 

 Malacca compared) will be P. simplex brunneus (BIyth), Journ. 

 Asiat. Soc. Bengal xiv, p. 568 (1842). 



