186 MR. W. J. F. WILLIAMSON ON 



Further, tliat species not incluiled in the I'reliminari/ IJd of i lie Birds 

 of B<i)iijl;ol: (riile Vol. I, No. I of this Jonnvd, jip. 41-18), would be 

 marked with an asterisk (*). For ths sake of uiiifoi'inity this arrange- 

 ment will be continued, but as, in the interval, the empIo3-ment of the 

 trinomial system of nonipnclature lias made considerable progress, and 

 a.s a number of the birds still to be dealt with in tliis Paper have been 

 accorded subspecific rank in recent contributions to the ornithology of 

 8iam, a brief synonomy will hereafter be given in the case of every bird 

 recorded hy other collectors. For the sake of brevity, Count Gyldeii- 

 stolpe's two I'apers [uiblislied in the Kiunjl. Scensliit Veteiislmps ika- 

 (Jemiens Handlingar, Band 50, No. 8, 1913, and Band 5(3, No. 2, 191 G, 

 will be quoted as " Gyldenstolpe 1913" and "' Gyldeiistolpe 1916," 

 respectively. 



Family TriiDIILh' — Chal.'^, Rubins, Tlirushes, &c. 



40 (610j. Pratiucola maura (Pall.) The Indian 

 Bush- Chat. 



Pndiiirohi tnn/iiulii stejiinjai, tJyldclisldlpe 11)13, p. 30: id. 19I(), 



p. 51. 



Descriplioii. Jjength about 127 mm. (5 in.). Male. Head 

 and neck all round black ; back also black, but with ( in winter plu- 

 mage) rufous mai-gins to the feathers, giving a mottled appearance, 

 which, however, disappears as the season advances and the rufous 

 edges get worn ; rum[i and ujiper tail-coverts white, sometimes suf- 

 fused with rufous ; wing dark browr), with a white patch caused bj^ the 

 innermost wing-coverts— the quills being edged with rufous on the 

 outer webs and tips ; tail blackish brown to black ; a largo white patch 

 on the side of the neck ; breast orange-rufous ; remainder of lower 

 plumage paler rufous. Female. \Vhole upper plumago brown (with 

 rufous mai'gins to the feathers), e.Kcept the upper tail-coverts which 

 are pale rufous ; no white patch on the side of the neck ; wings and tail 

 as in the male ; chin and throat pale fulvous ; remainder of lower 

 plumago orange-fulvons. 



Iris dark brown. Bill, legs, feet and claws blackish brown to 

 black. 



Ilal'ilf, c(t. This is a cold weather visitor to Bangkok, and 

 occurs here, so far as my observations go, from (October to April. It 



JoLKN. .NAT. H18T. .SOC. BIAM. 



