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Show 236 MESSRS. SCLATER A N D SALVIN O N [Mar. 16, Hab. Upper wood-region of the Paramo de la Culata, Merida (Goering). Obs. Assimilis B. schistaceo, sed pileo clarius castaneo in frontem producto, loris non albis et speculo alari nullo distinguendus. Mr. Goering sends two additional examples of this species, which in our previous paper we did not distinguish from B. schistaceus of Columbia and Ecuador. It appears, however, to be fairly separable. In Peru, again, we find another representative species of this section of the Buarremones, the B. mystacalis of Taczanowski (P.Z.S. 1874, p. 515). In this form there is likewise no white speculum on the wing ; but the white lores are very distinct, and the chestnut cap is lighter than even in B. castaneiceps. Unfortunately the term mystacalis has already been used for a nearly allied species of Buarremon\, so that we propose to alter the name of the Peruvian form to B. taczanowskii. Of this bird a figure (Plate XXXV. fig. 2) is also given, for comparison with the allied Venezuelan species. *36. AULACORHAMPHUS CALORHYNCHUS, Gould, Ann. N. H. ser. 4, vol. xiv. p. 183 (1874). Mr. Gould's description of this bird was based on examples obtained at Merida by Mr. Goering during his late expedition. W e agree with Mr. Gould in regarding this as a new species allied to A. sulcatus, but easily distinguishable by the yellow upper mandible. Judging from our specimens of A. sulcatus, however, it is not larger, but rather smaller than that species. Besides A. calorhynchus, Mr. Goering obtained, on his second journey, a single specimen of an Aulacorhamphus which Mr. Gould (I. s. c. p. 184) has referred to his newly described A. phaolamus. After examining this specimen (in Mr. Gould's collection), also a more adult example of the same bird obtained by Mr. Goering on his first expedition to Merida, and now in Salvin and Godman's collection^, and comparing it with several "Bogota" skins (true A. albivitta) and skins obtained by Mr. Salmon in the province of Antioquia (types of Mr. Gould's A. phaolamus), we have come to the conclusion that A. phaolamus is not, in our opinion, fairly separable from A. albivitta. In one of Mr. Salmon's skins (in Mus. S.-G.), and in the adult skin obtained by Mr. Goering on his first expedition, the throat is quite as white as in ordinary " Bogota " skins of A. albivitta. W e may add that Mr. Goering's specimen of Aulacorhamphus, obtained at Carip6, which was determined by us (P.Z.S. 1868, p. 169) as A. sulcatus, is Mr. Gould's A. erythrognathus (l.s.c. p. 184), but that Mr. Goering has also sent home the true A. sulcatus from S. Esteban (cf. P. Z. S. 1868, p. 629). The distinction between these two nearly allied forms, though slight, appears to be valid. t Arremon mystacalis, Sclater, Rev. et Mag. de Zool. 1852, p. S, -Buarremon albifrenatus (Boiss.). \ See P. Z. S. 1870, p. 782. |