nearly allied. I t will be seen, on reference to my account o f G. hirsuta, that when it was written I was much perplexed
with regard to its synonymy, or, rather, as to whether the small red-coloured bird, G. Mazeppa, was or was
not identical with it ; and although some years have since elapsed, I have not even now been able to arrive at a
satisfactory solution o f the difficulty. Under these circumstances, I think it will be best to regard the G. Mazeppa
as distinct ; and this view o f the subject is supported by the fact that I do not find small red-coloured.birds accompanying
the allied species, G. affinis, Lawr., which is a native o f Bogota. I think it likely that all these birds, when
fully adult, have the tail shorter and more rounded than during the period o f immaturity or at the end o f the first
year o f their existence. The youthful state, then, is indicated by a more cuneate form o f tail, all the feathers o f
which are pointed and tipped with white ; and as the birds "advance in age, at each moult the tail-feathers become
more rounded and the white tipping less, until at length it is reduced to a mere fringe, existing in some instances
on the middle feathers alone.
The distribution o f the species o f the genus Glaucis extends over the whole o f the eastern parts o f Brazil, the
Guianas, Trinidad, Tobago, Venezuela, the banks o f the Amazon, New Granada, and Veragua.
5 . G l a u c i s h i r s u t a . . . . . . . . . . . . . . . . Vol. I. PI. 5 .
Trochilus Dominions, Licht. Dubl. p. 12 ; Cab. Schomb. Reise Guian. tom. iii. p. 708.
------------ferrugineus, Wied, Beitr. iv. p. 20.
------------superciliosus, fcem., Less. Hist. Nat. des Col. p. 38, pi. 7 ; Id. Traité d’Om. p. 289 ; Jard. Nat. Lib.
Humming-Birds, vol. ii. p. 120, pi. 27 ; Burm. Th. Bras. tom. ii. p. 324.
------------hirsutus, Cab. et Hein. Mus. Hein. Theil iii. p. 4.
Habitat. Eastern Brazil, Venezuela, and the Island o f Trinidad.
6 . G l a u c i s M a z e p p a . Vol. I. PI. 6 .
Habitat. Cayenne, the Guianas, and the Islands o f Trinidad and Tobago.
7. G l a u c i s a f f i n i s , L a w r . Vol. I. PI. 7 .
Habitat. The high lands o f New Granada. Specimens are frequently sent from Bogota.
8. G l a u c i s l a n c e o l a t a , Gould . . . . . . . . . . . . Vol. I. PI. 8.
Habitat. Para.
9 . G l a u c i s m e l a n u r a , Gould . . . . . . . . . . . . . Vol. I. PI. 9 .
Habitat. The banks o f the Rio Napo and the Rio Negro.
10. G l a u c i s D o h r n i .................................................................. • Vol. I. PI. 10.
Glaucis Dohrni, Cab. et. Hein. Mus. Hein. Theil iii. p. 4.
Habitat. Southern Brazil.
M. Bourcier has given Ecuador as the locality where his specimen was procured ; but my bird was received
direct from the district o f Espiritu Santo in Brazil.
11. G l a u c i s R u c k e r i Vol. I. PI. 11.
Threnetes Ruckeri, Reichenb. Aufz. der Col. p . 1 5 ; Id. Troch. Enum. p. 12.
Glaucis Ruckeri, Cab. et Hein. Mus. Hein. Theil iii. p. 4.
Habitat. Veragua.
1 2 . G l a u c i s F r a s e r i , G o u ld ................................................................................................................................... * Vol. I . PL 12.
Mr. Fraser collected at Babahoyo, in Ecuador, specimens o f a bird which both Dr. Sclater and myself considered
to be identical with the Glaucis Ruckeri, but in which, on a more minute comparison with specimens from
Veragua, I find such differential characters as to entitle it to a distinctive position; I have therefore named it after
its discoverer, as a ju st tribute to one who has played a good part in the furtherance o f science. The G. Fraseri
differs from G. Ruckeri in being rather larger in size, in having a smaller amount o f rusty red on the chest, and in
having a decidedly grey breast; in other respects the two birds are very similar.
The following is Mr. Fraser’s note respecting this species :—
“ Found on the edge o f the virgin forest; always solitary; generally in dark and lonely places, and very restless.
Irides hazel; upper mandible black, lower yellow with a black t ip ; legs and feet flesh-colour.”
Habitat. Ecuador.
Allied to the last form are the members o f the genus Threnetes: these birds are not distinguished by any brilliancy
o f colouring, but two o f them are very prettily marked about the throat and chest.
Surinam and the adjacent countries are given as the habitat of T. leucurus, while the banks of the Rio Napo
are known to be the home o f the bird I have called cervinicauda-, and the sombre-plumaged T. Antonia is a native
o f Cayenne and the Guianas. I believe that the females o f all three species are clothed like the males.
Genus T h r e n e t e s , Gould.
(Qpr)in)T7)s, a mourner.)
Generic characters.
Male.—Bill lengthened, arched, and pointed; wings moderately long, and rounded at the tip ; tail short, square,
or rounded; tarsi partially clothed; fe e t very small; hind toe and nail short.
Vol. I. PL 13.
13. T h r e n e t e s l e u c u r u s .....................................................................................................................
Threnetes leucurus, Reichenb. Aufz. der Col. p. 15; Id. Troch. Enum. p. 12.
Habitat. Surinam and British Guiana. Hi . . . . v o i. i . pi. i4.
14. T h r e n e t e s c e r v i n i c a u d a , ....................................................
Habitat. Province of Quijos in Ecuador.
Vol. I. PI. 15.
15. T h r e n e t e s A n t o n i.® . . . . ■ • • •
Aphantochroa Antoniae, Reichenb. Aufz. der Col. p. 15; Id. Troch. Enum. p. 12.
Habitat. Cayenne and the Guianas.
I now enter upon the genus Phaëthornis, the members of which are so widely dispersed, that the remark
I made on the extended distribution o f the entire group is almost applicable to this section o f 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 o f Pyguomis, a term I shall now adopt for these little birds : but a further subdivision
o f the group I cannot for a moment entertain ; the separation o f the P . Bourcieri into a distinct genus, for
which the term Ametromis has been proposed by Dr. Reichenbach, and o f the P . Gayi under that of Tcotcuche, by
Dr. Cabanis, being, in my opinion, quite unnecessary.
Genus P h a ë t h o r n i s , Swains.
Vol. I. PL 16.
16. P h a ë t h o r n i s E u r v n o m e
Phathomis Eurynomus, Jard. Nat. Lib. Humming-Birds, vol. ii. p. 150.
Phaetornis eurynome, Bonap. Consp. Gen. Av. tom. i. p. 67, Phdètomis, sp. 5.
Trochilusmelanotis, “ Licht.” Nordm. Erm. Reis. Atl. p. 2.
Phoetomis melanotis. Gray & Mitch. Gen. o f Birds, vol. i.p . 104, Phetonus, sp. 3 ; Bonap. Consp. Gen. Av. tom. i.
p. 67, Phaetornis, sp. 3.
Ptyonornis Eurynome, Reichenb. Aufz. der Col. p. 14 ; Id. Troch. Enum. p. 12.
Phaëthornis Eurynome, Cab. et Hein. Mus. Hein. Theil iii. p. 9.
Habitat. Brazil.
17. P h a ë t h o r n i s m a l a r i s . „ . j ^ ^
Phaëthornis su p e r c ilio su s.......................................... '
Phaëthornis 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 à longue queue de Cayenne, Buff. PI. Enl. 600,3.
Brin blanc mâle, Vieill. Ois. Dor. tom. i. p. 37, pi. 17. u nva'ti
Trochilus superciliosus, Id. Enc. Méth. Orn. part 2. p. 549, sp. 5 ; Less. Hist. Nat. des Col. p. 35, pi. ; Id. Traité
d’Orn. p. 288 ; Jard. Nat. Lib. Humming-Birds, vol. ii. p. 119, pi. 26 ; Cab. Schomb. Re.se Gu.au. in.
p. 708 ; Burm. Th. Bras. ii. p. 323.