186C.] ON BIRDS FROM TENASSERIM. 25 



by Horsfield in his 'Zoological Eesearchcs in Java.' Sir Stamford Raffles's type specimen 



still exists in the India Museum. It belongs to a species readily distinguishable from Tickell's 



bird, by being above almost uniform rufous brown, with a tinge only of olive on the nape and 



rump. The head, wings, and tail are alike, and of a still darker brown. Underneath it closely 



resembles the continental species, but is brighter yellow, and has the throat more boldly streaked. 



A second and fresh specimen from Sumatra is in my collection, and is identical with the 



type. Malacca possesses a species which is very nearly allied to, if not identical with, the 



Sumatran form. The Javan race, hitherto by all authors referred to Timalia gularis, Horsf., 



is figured in the ' Planches Coloriees,' and is there described, as also by Prince Bonaparte in 



the ' Conspectus,' as having the throat white. From both these descriptions it also appears 



to possess other characters which distinguish it from the true Sumatran gularis and the P.Z.S.1806, 



continental rubicajnlla. Of the Javan form 1 have not seen a specimen ; but should it prove P" ^■^*^- 



really as distinct as the descriptions make it, it will require a new designation ; for we may 



assume that it is not Timalia flavicollis, Miill., described by Bonaparte in the ' Conspectus' and 



ranked as a Mixomis. Temminck (PI. Col. pi. 442. f. 1), however, after an examination of 



thirty specimens 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 Hors- 

 field's gularis, he continues to cite the Tenasserim provinces as its habitat. No Tenasserim 

 specimens of the Malaccan form existed in the Calcutta Museum when the Catalogue was com- 

 piled ; 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 comparison, the permanent nature of the slight differences 

 existing between the Tenasserim bird and that of Central India, and between the Malaccan race 

 and that of Sumatra, cannot be established : — 



1. Motacilla rtihicapilla. Tick. Central India. 

 Mixomis cliloris vel nificeps, Hodgs. Nipaul. 

 No. 40. Beavan's Collection. 



2. Motacilla gularis, Eatfles. Sumatra. 

 Timalia gularis, Horsf. Sumatra. 

 Mixomis sumatranus, Bp. Sumatra. 

 Prinia pileata, Blyth. Malacca. 



Mixomis gularis, Horsf. apud Blyth. Malacca. 



3. Jlfeora/.5(7«(/am (Horsf.) apud Bp. Java. 

 Myothera gularis, Temm. Java. 



20. Gareulax belangeri, Less., Bel. Voy. aux Indes, p. 258, pi 4. 

 Nos. 15, <S , 17. Sal ween River ; Kyodan. 



