348 Mr. D. G. Elliot on the 



Santa Lucia, of a certain number of whose birds, collected by 

 Mr. J. E. Semper, Dr. Sclater has lately given a list, has three 

 species, all of which are found in Martinique. 



Only one species inhabits St. Vincent and Barbadoes^ the Or- 

 thorhynchus crisiatus ; and it is not found anywhere else. 



These are all the islands of the West Indies of which we are 

 aware that any member of the Trochilidse is an inhabitant. 



From the foregoing it will be perceived that, although the 

 same species may be an inhabitant of several islands, yet they 

 are always contiguous to each other, and that no other species 

 of the same genus ever intervenes, as is the case with some genera 

 in the Indian archipelago, where one species inhabiting two 

 islands will have a distinct form of the same genus living on an 

 intermediate one. The members of the genus Eulampis appear 

 to have one of the widest ranges (only exceeded by the next), ex- 

 tending from the island of St. Thomas to that of Santa Lucia; and 

 we may naturally expect to find it on the islands lying between 

 these, when their avifauna becomes known. Orthorhynchus 

 passes over the greatest extent of latitude, being found from St, 

 Thomas to Barbadoes, one species extending to Dominica, the 

 second to Santa Lucia, and the third to the limit of its dispersion. 

 The remaining genera Lampornis, Aithurus, Doricha, Trochilus, 

 Calypte, Mellisuga, and Spo?-adinus are either (as is thecasewith the 

 first, third, and fourth) casual or outlying representatives of conti- 

 nental divisions of the family, or peculiar forms of most restricted 

 habitats, and which have sprung into existence, in all probability, 

 after this extent of land had been broken up into the dispersed 

 groups by which it is now known to us. The annexed Table 

 (p. 357) will give a more correct idea of the geographical distribu- 

 tion of the various species. 



In the following list I have made whatever corrections have ap- 

 peared necessary in synonymy or nomenclature, and referred 

 to their respective places any species which I have considered 

 established upon doubtful or insufficient grounds. 



Lampornis viridis. 



Trochilus viridis, Aud. et Vieill. Ois. Dor. vol. i. p. 34, pi. xv. 

 (1802). 



