1S77.] ON THEEE NEW SPECIES OP BIEDS. 437 



1877. 



Letter on Anthus gustavi, from the Marquis of Tweeddale to the Editors of l^is. 1877, 



'The Ibis' (April 1S77). P- -^^• 



SiES,— In some interesting remarks on Anthus gustavi, Swinhoe {antea [op. cH.'], p. 128), 

 Mr. Seebohm observes that this Pipit should be looked for in winter in the Philippine Islands, 

 in the Malay archipelago. At page 117* of the Zoological Society's ' Transactions,' vol. viii., the 

 occurrence of this species in Celebes is noticed, and its identity with Pqxcstes iatcMancnsis, 

 G. R. Gray, is recorded. Yours truly, 



Cbislehurst, March 1, 1877. TwEEDDALE. 



])escnj)tiotis of three New Species of Birds from the Indian Region. By Arthur, Marquis of p.z.S.1877 

 Tweeddale. [From the ' Proceedings of the Zoological Society of London,' read April 17, 1877f.l P- ^"^• 



Two of the species about to be described were obtained by Mr. Ossian Limborg on or near the 

 Mule-it:|; range of mountains in Tenasserim, a locality which had only been once previously visited 

 by a naturalist, namely, the late Colonel Tickell. The third species formed part of a collection 

 of birds made by Mr. Edmund Charles Buxton in the Lampong district of Sumatra. 



Trichostoma leucopeoctum, n. sp. 



$ . Above olivaceous ruddy brown, more rusty at the tips of the upper tail-coverts, greyish 

 on head, a tinge of pale rufous on a narrow frontal band, passing to the pale lores. Two centre 

 tail-feathers umber-brown. The three outer tail-feathers edged pure white on the inner web, 

 the extent of white edging increasing inwards, until the whole inner web of the antepenultimate 

 feather is white, while the fourth is broadly edged white for nearly its whole length on the 

 opposite or outer web. Shoulder of wing rusty olive, the primaries dull rusty brown. Blotch 

 of white on the upper breast, which is dull pale olive-brown, fading into the pure white of the 

 under tail-coverts. Wing rounded ; first primary i the length of the second, which is \ inch 

 less than the third, fifth the longest. Tarsus and feet moderately strong for the group. 



Length about 6-5 inches, wing 3-5, tail 3-0, tarsus 0-9, bill at front 0-63. 



Legs and feet grey ; irides dark brown. 



Hah. Base of the Miile-it range, Tenasserim. Obtained by Mr. Ossian Limborg. 



ChRTSOCOCCTX LIIIBORGI, n. sp. 



Above fine rich purple with steel reflections ; wings and tail the same, somewhat darker ; 



throat and breast same as the back. Two outer tail-feathers with a similar white tip, and 



four spots on the outer web of the last, with a short white streak on the inner web opposite 



each spot, the two together having a tadpole-like outline. Lower breast and vent white, the 



* [Antea, p. i'14.— Ed.] f [rublishcd August 1.— Ed.] % [%lt Mooleyit iu former papers.— En.j 



3l 



