1 16 . Genera of Humming Birds. 



The specimens which I have of this species were collected, 

 by me at San José, Costa Rica, which lays on the Atlantic 

 slope. I think the great difference in the colouring of the 

 underside and bill entitles it to be considered as a species. 



Genus LUI. Sporadinus, Bon., Rev. and Mag. Zool, 1854, 



P- 255. 

 RiCORDiA, Reich., Aufz. der Col., 1853, p. 10. 



Sporadicus, Cab. et Hein., Mus. Hein., i860, t. iii., p. 25. 



ERASMIA, Heine, Journ fur Ornith, 1863, p. 91. 



Marsyas, Muls., Cat. Ois. Mou., 1875, p. 13. 



Type : S. ricordi, Gervais. 



Bill as long as the head, straight. Nostrils naked. Wings 

 long, reaching near the end of the tail. Tail long, deeply 

 forked, tips of rectrices semi-rounded. Throat metallic. 

 Tarsi partly clothed. Sexes unlike. 



Habitat. — -West Indiae Islands. 



161. Sporadinus ricordi, Gerv. Rev. and Mag. Zool, 1835, 



pi., 40-42. 



Ornismya parzudaki, Less., Rev. Zool, 1838, p. 315. 



Orthorhynchus ricordi ', Delia, Sagra. Hist. Cuba, 1840, 

 p. 128. 



Hylocharis ricordi, Gray. Gen. Birds, vol. i., p, 114. 



Ricordia raimondi, Reich., Aufz. der Col, 1853, p. 8. 



Chlorestes raimondi, Reich. Troch. Enum., 1855, p. 4. 



Sporadicus ricordi, Cab. and Hein., Mus. Hein., i860, t. 

 iii. p. 25. 



Sporadinus bracei, Lawr, Ann. N.Y. Acad, Scien, 1877, p. 

 50- 



Ricord's Humming-bird, Gould, Mon. Troch., vol. v., p. 

 34«- 



Le Sporadin de Ricord, Muls., Hist. Nat. Ois. Mou., 1875, 

 vol. ii., p. 75. 



Habitat. — Cuba and Bahamas. 



Male. — Upperside bronzy-green. Underside metallic, 

 emerald-green, bronzy on flanks and abdomen. Wings 

 purplish-brown. Median rectrices bronze, lateral purplish- 



