INTRODUCTION. cv 



368. Chrysuronia chrysura Vol. V. PL 329. 



Phaethornis? chrysurus, Jard. Nat. Lib. Humming-Birds, vol. ii. p. 152. 



Chrysiirisca chrysura, Cab. et Hein. Mus. Hein.Theil iii. p. 42, note. 

 Habitat. Peru. 



Rich and conspicuous blue is the prevailing tint in the genera Eucephala and Hylocharis, which may be 

 considered as truly Brazilian, since most of the species are natives of that country, almost the only exception being 

 the E, Grayi, which is found in the Andes. There is scarcely any section of the Trochilidse less understood or 

 more difficult to discriminate than the next six or eight species. 



Genus Eucephala, Retchenh. 



369. Eucephala Grayi Vol. V. PI. 330. 



Eucephala Grayi, Cab. et Hein. Mus. Hein. Theil iii. p. 43. 



Habitat. Said to be Popayan in New Granada. 



This is the largest species of the genus, and a very rare bird. 



370. Eucephala smaragdo-c^rulea, Gould ......... Vol. V. PL 331. 



Habitat. Brazil, from Rio de Janeiro towards the interior. 



371. Eucephala CHLORocEPHALA Vol. V. PL 332. 



Habitat. The environs of Guaranda in Ecuador, according to M. Bourcier. 



372. Eucephala c^RULEo-LAVATA, GowW .......... Vol. V. PL 333. 



Habitat. South-eastern Brazil. 



373. Eucephala scapulata, Gould, 

 Habitat. Supposed to be Cayenne. 



Crown of the head, back of the neck, and lower part of the back very deep dull green ; throat and chest 

 glittering greenish blue, imperceptibly passing into the dull brownish black of the abdomen ; under tail-coverts 

 brown, with a wash of dull blue in the centre of each feather ; a mark of blue on each side at the insertion of the 

 wing, forming an indistinct band across the back ; upper tail-coverts bronzy green ; tail steely black, rather short 

 for the size of the bird, and shghtly forked ; wings deep purphsh brown ; tarsi clothed with intermingled greyish- 

 white and brown feathers ; upper mandible black ; basal half of the under mandible fleshy, the apical half black. 



Total length 3f inches, bill I, wing, 2-^^, tail if. 



In the size of its body, it nearly equals the Eucephala caruleo-lavata, but it differs from that and every other 

 known species of this family of birds. 



I have only seen a single example of this species. 



374. Eucephala hypocyanea, Gould ........... Vol. V. PL 334. 



Habitat. Unknown; probably Brazil. 



375. Eucephala c^rulea ............. Vol. V. PL 335. 



Chlorestes caeruleus, Cab. et Hein. Mus. Hein. Theil iii. p. 46, note. 



Trochilus Audeberti, Wied, Beitr. iv. p. 67. 



Cynanthus ? cceruleus, Jard. Nat. Lib. Humming-Birds, vol. ii. p. 147. 



Hylocharis Audeberti, Burm. Th. Bras. tom. ii. p. 349. 



Habitat. Eastern and Northern Brazil (Chamicuros, HauxwelT)^ the Guianas, Venezuela, Trinidad, and Tobago. 



Specimens from all these localities are so much alike that it is impossible to consider them otherwise than as 

 one and the same species ; but I may remark that those from Venezuela have the blue mark on the chin much less 

 apparent than those from Cayenne, Trinidad, and Eastern Brazil. My Chamicuros specimen also has this colour 

 but faintly indicated, and the tail somewhat larger. 



376. Eucephala cyanogenys. 



Trochilus cyanogenys, Wied, Beitr. iv. p. 10; Jard. Nat. Lib. Humming-Birds, vol. ii. p. 89 ; Burm. Th. Bras. 



tom. ii. p. 350. 

 Ornismya Wiedii, Less. Supp. Hist. Nat. des Ois.-mou. p. 150, pi. 26. 

 Cynanthus cyanogenys, Jard. Nat. Lib. Humming-Birds, vol. ii. p. 148. 



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