6 Genera of Humming Birds, 



crimson red feathers. Median rectrices golden green, lateral 

 grej at base, then golden green, then black, the two outer 

 feaihers tipped wich white. Bill black. 



This species was dedicated to Mrs. Anna, Duchess of Rivoli, 

 wife of Mariscal Massena, who formed a very fine collection of 

 Birds, which is now the property of the Academy of Sciences 

 of Philadelphia, United States. 



I have killed many specimens of both sexes of this species 

 in San Francisco, California, where it is abundant. 



7. Calyptb HELENA, Lcmbeye, Aves, Isle of Cuba. 1850, 

 ' p. 70. 



Orthorhynchus boothi, Gund, Jour, fur Ornith. 1856, p. 99. 



Helena's Caiypte, Gould, Men. Troch. Vol. III., p. 136. 



Le Calypte d'Helhie, Muls. Hist. nat. Ois. Mou., t. iv., p. 78. 

 Babitat — Cuba. 



Male. — Upperside and flanks greenish blue. Head, throat 

 and elongated feathers of neck metallic crimson. Underside 

 whitish. Tail metallic greenish blue. Wings purplish brown. 

 Bill black. 



Total length, 2|in. Wing, if. Tail, \. Culmen, \. 



Female. — Upperside dark green changing into bluish green 

 on the lower part of back. Underside greyish white. Median 

 rectrices dark bluish green, lateral bluish green at base, rest 

 black tipped white, bill black. 



This diminutive species, the smallest known, was discovered 

 at Cadenas (Cuba) by Doctor Jean Gundlach. It is still very 

 rare. I have only one young male in my collection. 



Genus III. Mellisuga, Brisson, Ornith, 1760, t. Ill , p. 695. 

 Dyrinia^ Muls and Verr., Class Troch., 1865, p. 88. 



Type T. Minimus, Linnd. 



Bill straight, shorter than the head, rather wide at base, 

 graduating to a point. Wings long and primaries narrow. 

 Tail slightly forked. No parure. Sexes alike. Size very minute. 

 Habitat, Jamaica, Haiti, Sto. Domingo. 



8. Mellisuga Minima. Linn, Syst. Naturae, 1766. Vol. I. 



P- 193- 

 Le plus petit Oiseau mouche, Buff. PI. enlum, 276, fig. i. 

 Trochilus Minutulus,V\Q\\\, Ois. Amer., Sept. 1807, t. 2, p. 73. 

 Trochilus Vieilloti, Shaw. Gen. Zool , Vol. VIII., p. 347. 

 . Ornysmia Minima, Less, Oiseaux. Mouch, 1829, pi. 79. 

 Mellisuga Humilis, Gosse, B. Jamaica, 1847, p. 127. 

 Trochilm Catherin-x. Salld, Rev. Zool., 1849, p. 49S. 



