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Show 1870.] ON NEW COLUMBIAN BIRDS. 841 Obs. Proxima <S. anthoidi, sed striis dorsi angustioribus et cre-brioribus, et rectricibus externis rufis distinguenda. 3. TYRANNISCUS LEUCOGONYS, sp. nov. (Plate LIII. fig. 1.) Tyranniscus, sp., Scl. Cat. i\.m. B. p. 216. no. 1320. Supra olivaceus; pileo toto dilute cinereo, fronte et capitis lateribus albo variegatis; alis caudaque fusco-nigricantibus, alarum tectricibus et remigibus flavicanti-olivaceo marginatis, rectricum marginibus olivaceo stride fimbriatis: subtus pallide limonaceo-fiavus, subalaribus limonaceo-flavis : maxilla cornea, mandibula alba, pedibus cornels : long, tota 4, alee 2*4, caudce 1*7, rostri a rictu 0*Hab. In int. Columbia. Mus. P. L. S. Two Bogota skins of this small Tyrant are in Sclater's collection, one having been purchased from Bell of N e w York in 1856, and the second more recently obtained from the Maison Verreaux. The species is of about the same size and general appearance as T. cinereiceps, Scl., but wants the conspicuous black ear-coverts and the broad whitish spots on the wing-coverts which distinguish that species. It is likewise of a much paler yellow below. The wings are rather long and pointed, the second, third, and fourth primaries being nearly equal and longest. 4. TYRANNISCUS IMPROBUS, sp. nov. (Plate LIII. fig. 3.) Supra olivaceus; capite obscuriore, frontem versus nigricante; fronte ipsa et regione oculari utrinque albicantibus; loris nigris; alis caudaque nigricantibus, alarum tectricibus et secundariis' flavo anguste limbatis ; rectricibus extus olivaceo fimbriatis : subtus dilute flavidus, gula et pectore superiore albicantibus, cinereo sub-lav atis ; subalaribus et campterio alari flavidis.- rostro et pedibus nigris: long, tota 4-5, alee 2'2,caudce 1*9, rostri arictu 0*5. Hab. In Andibus Venezuelse et Columbiae. Mus. P. L. S. Obs. Sp. Tyrannisco vilissimo, ex Guatemala, maxime affinis, sed pectore flavidiore et pileo nigricantiore, ut videtur, diversus. The first specimen of this Tyranniscus which occurred to us was obtained near Merida by Mr. Goering*, but we did not venture to describe it from a single specimen. More recently in Mr. C. Wyatt's collection we found a second example, which was obtained by that gentleman in the Sierra Ocana. 5. TYRANNISCUS GRISEICEPS, sp. nov. Tyranniscus, sp., Scl. Cat. A m . B. p. 216. no. 1318 ; Scl. & Salv. P. Z. S. 1869, p. 252. Supra dilute olivaceus, pileo cinereo ; fronte et capitis lateribus mixtis: alis caudaque fusco-nigricantibus, alarum tectricum et secundariorum marginibus in olivaceum trahentibus, rectricum marginibus externis dorso concoloribus : subtus limonaceo-fiavus, gut- * See antea. p. 7*S- |