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Show 842 MESSRS. SCLATER AND SALVIN [Dec. 6, tare albicante, subalaribus flavidis : rostro dilatato, corneo, obscuris : long, tota 4, alee 2, caudce 1*9. Hab. Western Ecuador, Pallatanga and Babahoyo (Fraser) ; Venezuela, Lake of Valencia (Goering). Mus. P. L. S. W e base this species upon two skins obtained by Fraser in Ecuador, which have hitherto stood in Sclater's collection under a MS. name. The single specimen, above referred to, obtained by Mr. Goering nearly agrees with these, and belongs, we have little doubt, to the same species. The bill is rather flatter and broader at tbe base than in other species of the genus Tyranniscus, the wings rather shorter, and the tail somewhat longer. The margins of the wing-coverts, instead of being distinctly defined as in T. vilissimus and its two allies T. parvus and T. impr'obus, are not nearly so bright and conspicuous. The second, third, fourth, and fifth primaries are nearly equal and longest. The three species above described increase the number of the members of this obscure genus to nine, which may be arranged as follows :- Claris generis Tyrannise!. a. tectricibus alarum nigris, albo terminatis. f regione auriculari olivacea: pileo nigro 1. nigricapillus. \ regione auriculari nigra: pileo cinereo 2. cinereiceps. b. tectricibus .alarum fuscis, flavo distincte marginatis. a', pileo dorso concolori: fronte aurea 3. chrysops. b'. pileo cinereo: fronte albida. «''. gutture albo aut grisescente. f major: pectore grisescente 4. vilissimus. \ major: pectore flavidescente 5. improbus. \ minor: pectore albicante 6. parvus. b". gutture fiavido perfuso. f major: mandibula albicante 7. leucogonys. \ minor: mandibula nigra 8. gracilipes. c tectricibus alarum fuscis, olivaceo obsolete marginatis ... 9. griseiceps. The synonymy and localities of these nine species are as follows (1) TYRANNISCUS NIGRICAPILLUS. Tyrannulus nigricapillus, Lafr. Rev. Zool. 1845, p. 341; Sclater, P. Z.S. 1860, p. 93. Tyranniscus nigricapillus, Cab. et Hein. Mus. Hein. ii. p. 57 ; Scl. Cat. Am. B. p. 216. Hab. Ecuador, Puellaro (Fraser) ; Bogota (Mus. P. L. 8.). (2) TYRANNISCUS CINEREICEPS. (Plate LIII. fig. 2.) Tyrannulus cinereiceps, Sclater, P. Z. S. 1860, p. 69. Tyranniscus cinereiceps, Scl. Cat. Am. B. p. 216. J Jab. Pallatanga, Ecuador (Fraser) ; Bogota (P. L. S.). (3) TYRANNISCUS CHRYSOPS. Tyrannulus chrysops, Sclater, P. Z. S. 1858, p. 458, 1859, p. 144, et 1860, p. 93. |