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Show 1868.] MESSRS. SCLATER AND SALVIN ON NEW BIRDS. 5!) ficient at once to indicate to which genus each species should :-• (1) Syrnium cinereum (Gm.) : ex Am. bor. (2) Syrnium nebulosum (Forst.) : ex Am. bor.-orient. (3) Syrnium fulvescens, nobis, ex Mexico et Guatemala. (4) Syrnium rufipes (King) : ex terra Ignea (King). (5) Syrnium hylophilum (Temm.) : ex Brasil. Ulula fasciata, Des Murs, Ic. Orn. t. 37, probably the same as Strix rufipes, King, is only known to us from the plate ; and Syrnium occidentale, Xantus, Pr. Ac. Phil. 1859, p. 193, we have not yet seen. 5. LEPTOPTILA PLUMBEICEPS, sp. nov. Leptoptila rufaxilla, Scl. & Salv. Ibis, 1860, p. 402 ; Scl. P. Z. S. 1856, p. 309. Supra leete brunnea, pileo toto plumbeo, antice albescentiore, postice violaceo tincto : subtus vinacea, gula et ventre toto crisso candidis : caudee rectricibus quatuor mediis dorso concoloribus, lateralibus nigris albo terminatis: subalaribus castaneis : remigibus intus cinnamomeo-castaneis, remige externo ceterorum apicibus plumbeis: rostro nigro : pedibus carneis long, tota 10, alee 5*5, caudce 3*6, tarsi 1*1. Hab. Prov. Veree Pacis in rep. Guatemalensi, et Mexico. Obs. Affinis L. rufaxillce, ex Am. merid. sed pileo saturate plumbeo dignoscenda. Mus. Salvino-Godmannico. 6. LEPTOPTILA CERVINIVENTRIS, sp. nov. Leptoptila, sp. ?, Salv. Ibis, 1861, p. 355. Supra leete brunnea., cervice postica violaceo vix tincta : pileo antico albescente vinaceo induto: subtus cervino-cinnamomea, pectore plumbescente tincto, gula albicante : ventre superiore fumido-brunneo, hypochondriis obscurioribus, ventre imo cum crisso medialiter albis : caudce rectricibus quatuor mediis supra dorso concoloribus : lateralibus nigricantibus, duabus aut tribus utrinque externis anguste albo terminatis : remigibus intus ad basin cum subalaribus castaneis: rostro nigro, pedibus leete carneis : long, tota 9, alee 5*3, caudce 3*4, tarsi 1*2. Hab. Prov. Veree Pacis in rep. Guatemalensi. Mus. Salvino-Godmannico. Sim. L. cassini, sed pectore dilutiore et vinaceo tincto et ventre summo saturate cervino differt. W e are acquainted with the following species of the genus Leptoptila, which may be easily distinguished from all other genera of Columbidae (except Peristera) by the peculiar acumination of the outer primary. All of them have the under wing-coverts deep cin- |