1917.) H. C. Ropinson: Birds from Pulau Langkawi. 169 
Muscicapa mugimaki, Hartert, Vog. Pal. Faun. i, p. 
492 (IQIO). 
a. Simm. Burau, N. W. Langkawi, 14th Dec- 
ember, 1916. [No. 3636.] 
bh. Simm. Telok Wau, Terutau, 28th December, 
1916. [No. 3785.] 
“Tris dark, bill horn, pinkish at base, feet dark 
brown.”’ 
Common in the Peninsula during the months October to 
April, immature birds in the dull pelage being in the great 
majority. We have numerous specimens from Terutau and 
also an immature male shot on Pulau Butang, Butang group, 
on April 2Ist, grt. 
74. MUSCITREA GRISOLA GRISOLA (Blyth). 
Pachycepala grisola, Gadow, Cat. Birds Brit. Mus. 
vill, p. 220 (1883). 
Muscitrea grisola, Robinson and Kloss, p. 54; Robinson, 
antea, vol. V, p. 148; Robinson, Ibis, 1915, p. 743: Gyldenstolpe, 
p. 78. 
Pachycephala grisola grisola, Stvesemann, Nov. Zool. 
XX, p. 355 (1913). 
a. %. Kuala Kubong Badak, Langkawi, t1oth 
March, rgug. 
b. ¥%. Pulau Langkawi, 16th February, 1909. 
c-d. 2%. Pulau Butang, Butang Archipelago, 
2oth April, rgrt. 
e. %. Pulau Nipis, Butang Archipelago, 22nd 
April, Igtt. 
f. ¢. Pulau Tengah, Butang Archipelago, 23rd 
April rg1t. 
All these birds are fully adult, those from the Butang Ids. 
being 1m breeding condition. Immature birds shot on Koh 
Samui, Bandon Bight in May and Pulau Ketam, coast of 
Selangor, in July, have the outer webs of the inner secondaries 
rufous brown and the wing coverts tipped and edged with the 
same colour. 
Very common on most small islands near the Malay 
Peninsula where there is mangrove forest and also along the 
coast of the mainland in similar situations, but so far as my 
experience goes never found in dry forest. 
There has been much discussion as to the systematic 
position of this bird. It is certainly not a typical Pachycephala 
but would appear to be best placed in a genus of its own, 
near to Niltava and Rhinomytas. If only on zoogeographical 
grounds, it must be removed from Pachycephala. 
