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Show 366 MARQUIS OF TWEEDDALE ON N E W INDIAN BIRDS. [Apr. 17, 7. Descriptions of three New Species of Birds from the Region. By ARTHUR, Marquis of TWEEDDALE. [Eeceived April 14, 1877.] 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 LEUCOPROCTUM, n. sp. 2 . 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. Tbe 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 \ 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\ inches, wing 3*5, tail 3*0, tarsus 0*9, bill at front 0*63. Legs and feet grey ; irides dark brown. Hab. Base of the Mule-it range, Tenasserim. Obtained by Mr. Ossian Limborg. CHRYSOCOCCYX LIMBORGI, n. sp. Desc. 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 feathers broadly barred with green and purple, and overlapping, form a succession of regular bands; the bars on the under tail-coverts are broader and of a stronger purple tint. Under-surface of wing white at the inner base of the primaries and secondaries, forming a narrow white bar inside the wing; a pure broad white crescentic collar on the lower nape, commencing low down on the side of the neck. Bill yellow. Legs rich green. Irides red, and a bright crimson orbital skin. Length about 6 inches, wing 4*0, tail 3*1, tarsus 0*6. Hab. Base of Mule-it range, Tenasserim. This species (which, while closely allied to, differs from O. xantho- |