INTRODUCTION. KKK: “Found on the edge of the virgin forest ; always solitary ; generally in dark and lonely places, and very rest- less. Irides hazel; upper mandible black, lower yellow with a black tip; legs and feet flesh-colour.” Habitat. Ecuador. Allied to the last form are the members of the genus Threnetes : these birds are not distinguished by any bril- liancy of colouring, but two of them are very prettily marked about the throat and chest. Surinam and the adjacent countries are given as the habitat of 7. leucurus, while the banks of the Rio Napo are known to be the home of the bird I have called cervinicauda; and the sombre-plumaged 7. Antonie is a native of Cayenne and the Guianas. I believe that the females of all three species are clothed like the males. Genus Turenetes, Gould. (Gpnvnr}s, a mourner. ) Generic characters. Male.— Bill lengthened, arched, and pointed ; wings moderately long, and rounded at the tip; tail short, square, or rounded ; tarst partially clothed ; feet very small; hind toe and nail short. 13. THRENETES LEUCURUS é é : ; § : ‘ : L : \ ‘ : Vol. TP. 13: Threnetes leucurus, Reichenb. Aufz. der Col. p.15; Id. Troch. Enum. p- 12. Habitat. Surinam and British Guiana. 14. THRENETES CERVINICAUDA, Gould. ; oa : : 3 : 4 : Vol. I. Pl. 14. Habitat. Province of Quijos in Ecuador. 15. THRENETES ANTONIE : : : : ; : ; : 2 : : é : Vol Pls 15: Aphantochroa Antoniae, Reichenb. Aufz. der Col. p. 15; Id. Troch. Enum. p. 12. Habitat. Cayenne and the Guianas. I now enter upon the genus Phaéthornis, the members of which are so widely dispersed, that the remark I made on the extended distribution of the entire group is almost applicable to this section of it. In the body of this work I have figured nearly thirty species under this generic appellation, including therein the smaller kinds to which Bonaparte gave the name of Pygmornis, a term I shall now adopt for these little birds: but a further sub- division of the group I cannot for a moment entertain ; the separation of the P. Bourciert into a distinct genus, for which the term Ametrornis has been proposed by Dr. Reichenbach, and of the P. Guyt under that of Toxoteuches by Dr. Cabanis, being, in my opinion, quite unnecessary. Genus Puatruornis, Swains. 16. PHAkTHORNIS EURYNOME . : ; ; A é : ; : : . . Vol. 1. Pl. 16: Phethornis Ewrynomus, Jard. Nat. Lib. Humming-Birds, vol. ii. p- 150. Phaétornis eurynome, Bonap. Consp. Gen. Av. tom. i. p- 67, Phaétornis, sp. 5. Trochilus melanotis, “ Licht.’’ Nordm. Erm. Reis. Atl. p. 2. Phetornis melanotis, Gray & Mitch. Gen. of Birds, vol. i. p- 104, Phetornis, sp. 3 ; Bonap. Consp. Gen. Av. tom. i. p. 67, Phaétornis, sp. 3. Piyonornis Eurynome, Reichenb. Aufz. der Col. p- 14; Id. Troch. Enum. p. 12. Phaethornis Eurynome, Cab. et Hein. Mus. Hein. Theil iii. p. 9. Habitat. Brazil. 17. PHAETHORNIS MALARIS. Phaéthornis superciliosus . : ; : ; : ; : ‘ 2 2 : Vol i Bhi Phaéthornis malaris, Gray & Mitch. Gen. of Birds, vol. i. p. 101, sp. 2; Bonap. Consp. Gen. Av. tom. i. p. 67, sp. 2; Cab. et Hein. Mus. Hein. Theil iii. p. 9. Colibri a longue queue de Cayenne, Buff. Pl. Enl. 600, 3. Brin blane mdle, Vieill. Ois. Dor. tom. i. prod, ple t7. Trochilus superciliosus, 1d. Enc. Méth. Orn. part 2. p. 549, sp. 5; Less. Hist. Nat. des Col. p. 35, pl.6 ; Id. Traité d’Orn. p. 288 ; Jard. Nat. Lib. Humming-Birds, vol. ii. p. 119, pl. 26; Cab. Schomb. Reise Guian. iii. p. 708; Burm. Th. Bras. ii. p. 323,