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Show 1877.] MR. O. SALVIN ON A NEW BIRD FROM COSTA RICA. 367 rhynchus, Horsf., by having a broad white nuchal collar) was by Mr. Ossian |Limborg under the Mule'-it range, east of Moulmain in January of the present year. BRACHYPTERYX BUXTONI, n. sp. Above, wings and tail rich ruddy brown ; whole under surface silky white, with a faint greyish tinge on sides of breast; thigh-coverts and under tail-coverts white, sullied with ochreous. Space before the eye and sides of head dingy ochreous. Upper tad-coverts rusty brown; wings 2*87 inches, tail 2*30, bill from forehead 0*75, tarsus 1*0, hallux with claw 0*4, middle toe without claw 0*62. Hab. District of Lampong, S.E. Sumatra; obtained by Mr.Buxton. Seen from above, this species has the aspect of B. albifrons, Boie, 2 > D u t is °f a less ruddy brown. 8. Description of a New Genus and Species of Oscines from Costa Rica. By O S B E R T SALVIN, M.A., F.R.S. [Eeceived April 17, 1877.] The ornithology of Costa Rica has lately attracted much attention and it might have been supposed that our knowledge of this subject was tolerably complete. During the past seventeen years many large collections of birds have been made in that Republic; and the results derived from their examination have been published by Dr. Cabanis1 in Germany, and by Mr. Lawrence2 m America; while several new species have been brought to notice by Mr. Sclater and myself3 in this country. t , It appears however, that the mountainous districts of Costa Kica have still attractions left for the naturalist, as will be manifest from the remarkable new form which I now proceed to describe. PHAINOPTILA, gen. nov.4 Rostrum debile, angustum, glabrum, valde aduncatum maxillee apice dentato: nares apertce: seteerictales breves. Aeerotimdatee: remexprimus longus, dimidium secundi cequans. 2. < 3. < 4. -4 et 5. longissimi. Acrotarsi breves, integn, sicut m gen. Turdus. Ptilosis mollis sicut in gen. Ampehdarum. Typus et species unica PHAINOPTILA MELANOXANTHA, sp. n. Nitrnte niara pectore et abdominis lateribus cum crisso olivaceis, NTlTrdioPardesiaco: hypochondriis et dorso postico leetis-i See Journ. fiir Ornith. 1860, pp.321, 401_; 1861 pp. 1, 81, 241. 2 See Ann. Lye. Nat. Hist. New York, 1868, p. 8b. 3 See P. Z.S. 1869, p. 416. 1 <paeivo$, splendens, et irriXov, pluma. |