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Show 194 MESSRS. SCLATER AND SALVIN ON BIRDS [Mar. 27, 168. THALURANIA NIGRO-FASCIATA, Gould. Hab. Sarayacu. 169. CLYTOL^EMA AURESCENS, Gould. Hab. Upper Ucayali. A single, not very perfect example of this rare species. M. Ver-reaux's collection contains a specimen from the Rio Napo. 170. LEUCIPPUS CHLOROCERCUS, Gould, MS. Five examples of this apparently new species, from Nauta and different parts of the Upper and Lower Ucayali. Mr. Gould describes it as follows :- " Crown of the head, nape, shoulders, back, and upper tail-coverts green ; tail-feathers bluish green, with a faint zone of darker green near the end ; the extreme tip of all but the two central ones grey, which gradually increases in extent as the feathers recede from the middle, and becomes most conspicuous on the outer ones, where it pervades the whole of the outer web ; wings purplish brown ; breast greyish white, with an obscure spot of dull green in the centre of each feather, particularly those of the throat; flanks dull green; lower part of the abdomen and under tail-coverts greyish white; bill black ; feet dark brown. " Total length 3f- inches, bill f, wing 2|, tail 1 \, tarsi \. " Hab. The Upper Ucayali. "Remark.-This species is about the size of Leucippus chiono-gaster (Trochilus chionogaster, Tschudi)." 171. THAUMANTIAS FLUVIATILIS, Gould, Intr. to the Troch. p.154. Hab. Lower Ucayali. 172. THAUMANTIAS BARTLETTI, Gould, MS. Seven examples of this rather striking new species from Sarayacu. Mr. Gould proposes to name it after its enterprising discoverer, with the following characters :- " Crown of the head, nape, and back deep grass-green, changing to bronzy green on the upper tail-coverts; throat and chest rich blue; flanks green; centre of the abdomen greyish white ; under tail-coverts bronzy brown, margined with grey; tail bluish black, the upper surface of the two central rectrices washed with green, and the four outer feathers on each side obscurely tipped with grey in those specimens which, according to Mr. Bartlett, are females; wings deep purplish brown; upper mandible brownish black; under mandible flesh-colour ; feet dark brown. "Total length 3-| inches, bill 1, wing 2\, tail \\, tarsi \. "Hab. The Upper Ucayali. " Remark.-This species, which I have named in honour of its discoverer, is of the same size as, and closely allied to, m y Thaumantias fluviatilis, from which it principally differs in having the breast blue instead of shining green." |