466 MR. O. SALVIN ON THE AVIFAUNA 
Families of Birds represented in the Galapagos, with their Distribution. 
1. Turdide. 8. Strigidz. 15. Rallide. 
2. Mniotiltide. 9. Falconide. 16. Charadriide. 
3. Hirundinide. 10. Pelecanidee. 17. Scolopacide. 
4. Coerebide. 11. Ardeide. 18. Laride. 
5. Fringillide. 12. Phoenicopteride. 19. Procellariide. 
6. Icteride. 13. Anatidze. 20. Spheniscidz. 
7. Tyrannide. 14. Columbide. 
Of these twenty families all but five are nearly universally distributed over the globe. 
Of the remainder, four, viz. Mniotiltid, Coerebide, Icteride, and Tyrannide, are peculiar 
to the continent of North and South America, whilst the fifth, Spheniscids, is a product 
of the Antarctic seas. 
IV. SuMMARY OF THE BIRDS FOUND IN EACH ISLAND. 
Chatham Island.—Visited by Mr. Darwin and the officers of the ‘Eugenie.’ The 
common Mimus melanotis occurs here, as well as Dendreca aureola. The peculiar 
genus Certhidea is represented by C. olivacea. Of Geospiza no less than seven species 
occur, in fact all the so-called species, except G. dentirostris, which may, and pro- 
bably is, also found there, since Mr. Darwin’s specimens have no locality recorded. 
Cactornis has not yet been detected ; and of Camarhynchus, only C. prosthemelas. The 
widely ranging Myiarchus magnirostris completes the twelve species which are all that 
have as yet been noticed on Chatham Island. It probably harbours its share of some 
twenty other species, of which only a general range is given. 
Charles Island.—Visited by Mr. Darwin and the officers of the ‘Eugenie.’ Two 
species of Mimus are found here—J/. trifasciatus and, according to Sundevall, J. 
melanotis, the latter also ranging through several other islands. Dendreca aureola is 
mentioned by Darwin as occurring throughout the islands; but no particular island is 
specified. Professor Sundevall, however, names Charles Island as one on which speci- 
mens were obtained by the officers of the Swedish vessel. Progne concolor was 
obtained by Néboux. Of Geospiza three species have been noticed—G. magnirostris, 
of which Mr. Darwin is the only naturalist who has obtained specimens, G. fortis, 
the most widely ranging species of the genus, and G. nebulosa. Of Cactornis only 
the common C. scandens has been noticed. Camarhynchus is represented by two 
species, one, however, doubtfully C. crassirostris. ‘The other, C. prosthemelas, is found 
in several other islands. The only other species noticed in Charles Island is Larus 
fuliginosus, though several others may haye been obtained there whose precise origin 
was not recorded by the collector. 
James Island.—Visited by Mr. Darwin and the officers of the ‘ Eugenie.’ MJimus 
melanotis is the Mocking-bird of this island, where Dendreca aureola is also found. 
It and Charles Island are the sole recorded localities for Progne concolor. Certhidea oli- 
