548 VISCOUNT WALDEN ON .BIRDS FROM TENASSERIM. [NOV. 22, 



possess other characters which distinguish it from the true Sumatran 

 gularis and the continental rubicapiUa. Of the Javan form I have 

 not seen a specimen ; but should it prove really as distinct as the 

 descriptions make it, it will require a new designation ; for we may 

 assume that it is not Timalia flavicollis, Mull., described by Bona- 

 parte in the ' Conspectus ' and ranked as a Mixornis. Temminck 

 (PI. Col. pi. 442. f. 1), however, after an examination of thirty spe- 

 cimens sent to him from Java and Sumatra, considered the races 

 from those two islands to be identical. 



Prince Bonaparte, having mistaken the Javan bird for Raffles and 

 Horsfield's species, described, in the ' Conspectus,' from a specimen 

 in the Leyden Museum, the Sumatran form as new, under the title 

 of M. sumatranus. This title must be expunged. The Malaccan 

 race supplied the type of Mr. Blyth's Prinia pileata (J. A. S. B. 

 1842, p. 204, where he adds that it is also found in Tenasserim). 

 In his catalogue, while making P. pileata a synonym of Horsfield's 

 gularis, he continues to cite the Tenasserim provinces as its habitat. 

 No Tenasserim specimens of the Malaccan form existed in the Cal- 

 cutta Museum when the catalogue was compiled ; and its occurrence 

 so far north probably will require further confirmation. 



The following is a recapitulation of the synonyms of the three 

 species. In the absence of a greater number of examples for com- 

 parison, the permanent nature of the slight differences existing be- 

 tween the Tenasserim bird and that of Central India, and between 

 the Malaccan race and that of Sumatra, cannot be established : — 



1. Motacilla rubicapiUa, Tick. Central India. 

 Mixornis chloris vel ruficeps, Hodgs. Nipaul. 

 No. 40. Beavan's Collection. 



2. Motacilla gularis, Raffles. Sumatra. 

 Timalia gularis, Horsf. Sumatra. 

 Mixornis sumatranus, Bp. Sumatra. 

 Prinia pileata, Blyth. Malacca. 



Mixornis gularis, Horsf. apud Blyth. Malacca. 



3. Mixornis gularis, (Horsf.) apud Bp. Java. 

 Myiothera gularis, Temm. Java. 



20. Garrulax belangeri, Less., Bel. Voy. aux Indes, p. 258, 

 pi. 4. 



Nos. 15, 6, 17. Salween River ; Kyodan. 



" Irides dark red ; bill black ; legs leaden." According to Jerdon 

 the irides of the Himalayan 6?. leucolophos are red brown, and in 

 some brownish yellow. Although without a Pegu example for com- 

 parison (Lesson's type being from that country), the specimen sent 

 agrees so well with Lesson's description that I have little hesitation 

 in considering it of the same race. When compared with Darjeeling 

 specimens of G. leucolophos, Hardw., the distinctive characters of 

 these two closely allied forms are self evident. A third race, from 

 some part of Siam, is represented by a specimen in my collection. 

 Iu it the entire under surface is white, the thigh-covers and flanks 



