OCR Text |
Show 1870.] MESSRS. SCLATER AND SALVIN ON THE CRACIDiE. 525 from which it is mainly distinguishable by its larger size and generally greener and lighter colour. 6. PENELOPE OBSCURA. El Yacuhu, Azara, Apunt. iii. p. 72. no. 335. Penelope obscura, Temminck, Pig. et Gall. iii. p. 68, et p. 693; Vieill. Nouv. Diet, xxxvi. p. 343, et Enc. Me'th. 361 ; Wagler, Isis, 1830, p. 1111. Penelope nigricapilla, G. R. Gray, P. Z. S. 1860, p. 269 ; List of Gall. p. 7 ; Reichenb. Tauben, p. 152. Penelope bridgesi, G. R. Gray, P.Z.S. 1860, p. 270; List of Gall. p. 7; Reichenb. Handb. Tauben, p. 151. Obscure eeneo-viridis: dorso inferiore et abdomine toto chocola-tino- brunneis : dorsi superioris, tectricum alarium et corporis subtus ad medium ventrem plumis albo marginatis : pilei antici plumis argenteo anguste marginatis: long, tota 25, alee 11*5, caudce 12, tarsi 3. Hab. Paraguay (Azara) ; Rio Vermejo et Rio Paraguay (Page) ; Bolivia (Bridges). Mus. Brit., Smiths, et S.-G. The examination of four skins of this Guan obtained by Capt. T. J. Page during his expeditions up the Parana and its confluents in the United-States steamer ' Waterwitch,' and now in the Smithsonian Collection, have enabled us to identify it with Azara's Yacuhu, which has hitherto remained unrecognized. Not only does the bird agree sufficiently well with Azara's description, but one of Capt. Page's specimens bears a label with " Pavo del Monte " written on it, the provincial name, according to Azara, of his Yacuhu. It follows, therefore, that we must use for this bird the name obscura, founded by Temminck upon Azara's description. Upon comparing the above-mentioned birds with the types of Penelope bridgesi and P. nigricapilla in tbe British Museum we have no doubt of their identity. The latter has but faint traces of white markings on the head ; but two of Capt. Page's specimens, which we consider not quite mature, have likewise but very slight indications of this feature. Having thus had the advantage of examining six specimens of this Guan at one time, we see that considerable variation is shown in the extent of the white markings on the feathers of the bead, a character upon the constancy of which Mr. Gray seems to have depended too much when differentiating his P. nigricapilla and P. bridgesi. 7. PENELOPE CRISTATA. Meleagris cristata, Linn. S. N. i. p. 269 ('!). Penelope cristata, Lath. Ind. Orn. ii. p. 619; Temm. Pig. et Gall. hi. p. 46 et p. 691 ; Wagler, Isis, 1830, p. 1110 ; Burm. Syst. Ueb. iii. p. 339. Salpiza cristata, Wagl. Isis, 1832, p. 1226; Cab. in Schomb. Guian. iii. p. 745. PROC. ZOOL. Soc-1870, No. XXXV. |