204 



GENERA A.ITD SPECIES. 



Gtenus TEOCHILUS, Linn, in part. Bonap. 



Mr. G-ould gives to this genus the title of. 

 COLIBBI, restricting the generic title of T 

 chilw to the group of which Polytmus is the 

 type. Within the genus Colibri, he places as 

 the normal species, the Tr. Colubris, or Ruby- 

 throated Humming-bird, and also the Nootka 

 Sound species, but only provisionally, as there 

 are differences which may render a generic sepa- 

 ration requisite. The Prince of Canino places 

 the Nootka Sound Humming-bird in the genus 

 Selasphorus, of which he regards it as the type. 

 Adopting the title Colibri, in accordance with 

 Mr. Grould, we may observe that it is characte- 

 rized by a long straight beak, by a sabre-like 

 form of wing, and by the forked termination of 

 the tail. 



The typical example is the Ruby-throat, or 

 Northern Humming-bird, Trochilus Colubris, 

 Linn. : described and figured in the Naturalist's 

 Lib. Ornith. vol. i. p. 85, pi. 5. To this species 

 we have already adverted and for more ample 

 details the works of Wilson and Audubon may 

 be consulted. 



A second species is the Trochilus Ricordi, from 

 Cuba. 



G-enus OENISMTA, Bonap. (Lesson in part, 

 Hylocharis, in part, Gray.) 



To this genus belongs the Trochilus niger of 

 Linnaeus, which appears to be the Tr. FieiUoti 

 of Shaw, the Ornismya minima of Lesson, and 



