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Show 592 MESSRS. SCLATER AND SALVIN ON [May 23, 272. EREUNETES PETRIFICATUS, 111.; Baird, B. N. A. p. 724. Mexiana. 273. GAMBETTA FLAVIPES, Gm. Mexiana. 274. RHYACOPHILUS SOLITARIUS (Wils.). Mexiana. 275. TRINGOIDES MACULARIUS (Linn.). Mexiana. Fam. RALLI DA. 276. PORZANA CAYENNENSIS (Linn.). Para. 277. PORPHYRIO PARVUS (Bodd.). Amazons. 278. PORPHYRIO MARTINICUS (Linn.). Amazons. Fam. PSOPHIIDA. 279. PSOPHIA OCHROPTERA, Pelzeln. Rio Negro (Wallace in Mus. Brit.). Mr. Wallace has given some interesting remarks on the geographical distribution of the different species of Trumpeter in his 'Travels' (p. 473); but, from his specimens having been lost, he has perhaps not quite accurately laid down the boundaries between them. Von Pelzeln's paper on the birds of this group collected by Natterer* gives further details upon the subject, and enables us to indicate what we believe to be the probable ranges of the known species, which appear to be separated by rivers. a. Species dorso cinereo aut albo. (1) Ps. crepitans (Linn.). British Guiana, extending inwards as far as the Rio Negro. (2) Ps. ochroptera, Pelzeln, I. c. p. 371. Upper Rio Negro, probably only on the right bank. Barcellos (Natt.). (3) Ps. leucoptera, Spix. South or right bank of the Amazons above the Madeira. Ega, Coari, and San Paolo (Wallace). b. Species dorso viridi. (4) Ps. viridis (Spix). South or right bank of the Amazons below the Madeira, and extending up the right bank of the Madeira to the Rio Mamore (Natterer). Villa Nova (Spix). (5) Ps. obscura, Pelzeln. Right bank of the Amazon near Para. The dividing river between this and the preceding species is not known; it may be the Tocantins, the Xingu, or the Tapajos. * Sitz. Ak. Wien, xxiv. p. 371 et seq. (1857). |