xlii INTRODUCTION. 



31. Phaethornis superciliosa. 



Phaethomis Pretrei Vol. I. PI. 28. 



Polytmus Cayanensis longicaudus, Briss. Orn. torn. iii. p. 686, 13, tab. 35. fig. 5. 



Trochihs super ciliosus, Linn. Syst. Nat. torn. i. p. 139 ; Lath. Ind. Orn. torn, i. p. 302; Wied, Beitr. torn. iv. 



p. 116 ; "Licht." Nordm. Erm. Reis. Atl. p. 2, 16. 



Pretrei, Delatt. et Less. Rev. Zool. 1839, p. 20. 



hrasiliensis, Cab. in Schomb. Reis. Guian. torn. iii. p. 708. 



Phatornis Pretrei, Gray, Gen. of Birds, vol. i. p. 104, Phcetornis, sp. 16, pi. 35 ; Bonap. Consp. Gen. Av. torn. i. 



p. 68, Phaetornis, sp. 15. 

 TrocUlus affinis, Natt. in Mus. Vindob. 

 PhcetJiornis affinis, Pelzeln, Sitz. Acad. Wien, 1857, p. 157. 

 Phaethornis superciliosus. Cab. et Hein. Mus. Ilein. Theil iii. p. 9. 



Habitat. Eastern Brazil. 



As in the case of P. malaris, the above list of synonyms is given on the authority of Dr. Cabanis. 



32. Phaethornis Augusti Vol. I. PL 29. 



Phaethornis Augusti, Reichenb. Aufz. der Col. p. 14 ; Id. Troch. Enum. p. 12. 



Habitat. Venezuela. 



33. Phaethornis squalida. 



Phaethornis intermedins Vol. I. PI. 30. 



Trochihs squalidus, "Natt." Temm. PL Col. 120. fig. I ; Less. Man. d'Orn. p. 289 ; Id. Hist. Nat. des. Col. p. 40, 



pL 8 ; Id. Traite d'Orn. p. 289 ; Jard. Nat. Lib. Humming-Birds, vol. ii. p. 125. 



intermedins, Less. Troch. p. 65, pi. 19 ; Jard. Nat. Lib. Humming-Birds, vol. ii. p. 123. 



leucophrys, "Licht." Nordm. Erm. Reis. Atl. p. 2, 18. 



Phathornis squalidus, Jard. Nat. Lib. Humming-Birds, vol. ii. p. 151; Bonap. Consp. Gen. Av. torn. i. p. 68, sp. 11 ; 



Burm. Th. Bras. tom. ii. p. 325. 

 intermedins, Jard. Nat. Lib. Humming-Birds, vol. ii. p. 150 ; Gray & Mitch. Gen. of Birds, vol. i. 



p. 104, sp. 8 ; Bonap. Consp. Gen. Av. tom. i. p. 67, Phaetornis, sp. 8. 



leucophrys. Gray & Mitch. Gen. of Birds, vol. i. p. 104, sp. 4. 



brasiliensis, Gray & Mitch. Gen. of Birds, vol i. p. 104, sp. 10. 



Ptyonornis intermedia, Reichenb. Aufz. der Col. p. 14 ; Id. Troch. Enum. p. 12. 

 Phaethornis squalida. Cab. et Hein. Mus. Hein. Theil iii. p. 8. 

 Habitat. South-eastern Brazil. 



We nov^ come to that section to which Bonaparte gave the generic name of Pygmornis. 



Genus Pygmornis, Bonap. 



As the term implies, these birds are all extremely diminutive ; so minute, indeed, are they, that, if subjected to 

 the balance, their tiny bodies must be weighed by grains. That these mites of birds perform some important ofl&ce 

 in the scale of nature is certain, from the number both of species and individuals : they are very widely dispersed 

 over every part of the great country which is inhabited by this extensive family of birds ; with the exception of one 

 species, however (the P. Adolphi), they all fly to the southward of the Isthmus of Panama. How minute must be 

 the insects taken by these diminutive birds, how perfect must be their vision, and how delicately sensitive must be 

 their tongue ! 



The only external difference between the sexes consists in the longer and more graduated tails of the females ; 

 in colour they are as nearly alike as possible. 

 34. Pygmornis Longuemarei. 



Phaethornis Louguemareus ............ Vol. I. PL 31. 



Trochihs Longuemareus, Jard. Nat. Lib. Humming-Birds, vol. ii. p. 126; Cab. in Schomb. Reis. Guian. 



tom. iii. p. 709. 

 Phcethornis Longuemareus, Jard. Nat. Lib. vol. ii. p. 151. 

 Pygmornis Longuemarei, Cab. et Hein. Mus. Hein. Theil iii. p. 7, note. 

 Habitat. Cayenne, Guiana, Trinidad, and the eastern part of Venezuela. 



