ENT ROD CT EON: Ixxxix tarsi short and partially clothed; feet small; hind toe short ; nails moderately long and straight ; crown decorated with several luminous colours. Female.—Unknown. 272. DipHitocana Iris, Gould : , ‘ : : : ; : es : : Vols VR), 247, Habitat. Andes of Bolivia, between Sorata and Illinani. The locality given me by M. Warszewicz is the province of Huancabamba au Cordilera Solaio, 9000 feet. 273. DipHtocana Aurora, Gould : : : : : : : d Vol TV: Br 248 Hypochrysia Aurora, Reichenb. Aufz. der Col. p:9. Coeligena Warszewiczi, Reichenb. Aufz. der Col. p. 23; Coeligena Warszewiczit, Reichenb. Troch. Enum. p. 4, pl. 690. fig. 4526. Habitat. Peru; locality the same as D. Iris. Dr. Reichenbach’s specific name of Warszewiczi must, I believe, give place to that of Diphlogena Aurora, unless his name was proposed prior to the 12th of April, 1853, when I read my paper on this and other new species before the meeting of the Zoological Society of London, as reported in the ‘ Atheneum’ of the 16th of the same month. The form which appears to me to range next in point of affinity is that of Clytolema. The two members of this genus, unlike their predecessors, which are from the Andes, are natives of the low countries,—one, the C. rubinea, being found in Brazil, and, so far as we yet know, confined to the most eastern parts of that country ; the other, the beautiful C. aurescens, is an inhabitant of the forests of the upper part of the Rivers Madeira and Negro. Genus Crytotema, Gould. (KAuvros, celebris, et Aapos, guttur. ) Generic characters. Male.— Bill straight and rather longer than the head ; wings moderately long and pointed ; ¢ail rather short, and very slightly forked ; tarsi partially clothed ; feet strong ; hind toe and nail shorter than the fore toes and nails ; crown and gorget luminous. Female.—Destitute of any fine colour. 274, CLYTOLHMA RUBINEA . ; : : : : s : ; : ; ‘ ; Vol. IV. Pl. 249. Trochilus ruficaudatus, Vieill. Nouv. Dict. d’ Hist. Nat. tom. vii, p. 370, tom. xxiii. p. 429. Cynanthus rubineus, Jard. Nat. Lib. Humming-Birds, vol. ii. p. 146. Helodoxa rubinea, Reichenb. Troch. Enum. p. 9, pl. 744. figs. 4706-9. Calothorax rubinea, Burm. Th. Bras. ii. p. 340. Habitat. The eastern portions of Brazil; common at Rio de Janeiro. 275. CLYTOLAMA? AURESCENS, Gould . : : : : : : : ; : ‘ Vol. IV. Pl. 250. Habitat. The forests bordering the Rivers Madeira, Upper Amazon, and Negro. By some Trochilidists it may be thought that this species should form the type of a distinct genus ; but after a careful comparison I believe that I have placed it in its right situation; at the same time I admit that there is some little doubt on the subject. I next proceed to a group of birds of considerable size, with lengthened straight bills, and the plumage and markings of which render them very conspicuous—the prevailing colours being black and white, relieved by blue and other tints on the crown; they have small and very delicate feet, the colours of which are either rosy or white. I consider them to constitute a very distinct section of the Trochilide, and I have much pleasure in adopting for them the generic appellation of Bourcieria proposed by the late Prince Charles Bonaparte. All the known species are from the Andes, over which they are spread from the southern part of Peru to the northern part of New Granada. Genus Bourciera, Bonap. As a typical example of the form, I commence with— 276. BouRCIERIA TORQUATA 4 ‘ ; Vol, IV RI. 251. Homophania torquata, Cab. et Hein. Mus. Hein. Theil iii, p. 79. Habitat. Columbia. Common in the temperate regions round Bogota.