1917.] H. C. Rosinson: Birds from Pulau Langkawi. 17 
/ fod / 
moult, a possibility that has always been hotly disputed by 
many biologists. 
The southern subspecies is extraordinarily close to the 
northern and only differs in the relative length of the under 
tail coverts, which more nearly approach the tip of the tail in 
the southern than they do in the northern form. There seems 
to be no tangible difference in size. Wings of Langkawi adult 
female, 122-128 mm. 
82. HEMIXUS MALACCENSIS (Blyth). 
Sharpe, tom. cit. p. 52; Robinson and Kloss, p. 56; 
Robinson, antea vol. V, p. 102 (1915). 
a. %.W. side Pulau Telibun, Trang, S.W. Siam. 
Ist January 1917. [No. 3804.} 
Quite rare in the north of the Peninsula, whence we have 
three specimens only, not differing from others from the 
vicinity of the type locality, Malacca. 
83. MICROTARSUS MELANOCEPHALOS (Gm.). 
Micropus melanocephalus, Sharpe, tom. ctt. p. 65; 
Robinson and Kloss, p. 57. Robinson, antea, vol. v. p. 148. 
Microtarsus melanocephalus, Gyldenstolpe, p. 66. 
a—b. 2 6. Pasir Raja, Pulau Lontar, S.W. Siam. 
12th January 1917. [Nos. 3904, 5.] 
‘Tris blue, bill and feet black.” 
84. CRINIGER GUTTURALIS OCHRACEUS, Moore. 
Criniger sordidus, Richmond, Proc. U. S. Nat. Mus. 
XXIl, p. 320 (1900); Robinson and Kloss, p. 57; Robtison, antea, 
vol. Vv, p. 102 (1QI5). 
Criniger ochraceus, Moore, Cat. Birds Mus. E.J.C.1, p. 
252 (1854) ; Robinson, Ibis, 1915, p. 746; 
Criniger gutturalis sordidus, Gyldenstolpe, p. 67. 
a. %. Burau, N.W. Langkawi, 15th December 
1916. [No. 3645.] 
“Tris chocolate, bill plumbeous, blackish on culmen, 
tarsi horny pink.” P 
The Bulbuls of this group are extremely closely allied and 
the several species described are but little more than ill-defined 
subspecies. From descriptions, I fail to see in what respects 
Criniger henrict, Cust. Bull. Mus. Hist. Nat. Paris, 1896, p. 183, 
can be distinguished from this form. Gyldenstolpe (loc. cit.) 
lists both, from the same locality, Koon Tan, in Northern Siam. 
The present race is common in the Northern Malay Penin- 
sula, becoming slightly differentiated further south. 
85. PYCNONOTUS FINLAYSONI, Strickl. 
Sharpe, tom. cit. p. 144; Robinson and Kloss, p. 58; 
Rabson, antea, vol. V, p. 149; Robimson, Ibis, 1915, p. 747; 
Gyldenstolpe, p. 69. 
Sept., 1917. - c sere 
