1897] The Origin of the Galapagos Islands, 893 
islands of the Pacific Ocean (with a few exceptions); New 
Caledonia; Lord Howe’s Island; Norfolk Island; Australia 
with Tasmania, New Zealand, Chatham Islands. 
Gadow enumerated in 1884 eighty-five species of Zosterops. 
The number of species known to-day must certainly be much 
greater. The differentiation into species is very remarkable, 
and a great many are restricted to single islands. I mention 
the following species. 
1. Zosterops cxrulescens Lath. Australia; New Zealand; 
Chatham Island. 
2 and 3. Zosterops albigularis Gould and Z. tenuirostris Gould. 
Norfolk Island. 
4. Zosterops strenua Gould. Lord Howe’s Island. 
5. Zosterops tephropleura Gould. Lord Howe’s Island. 
6. Zosterops griseonata Gray. New Caledonia and Erro- 
mango, New Hebrides. 
7. Zosterops vatensis Tristr. Vate, New Hebrides. 
8. Zosterops flavifrons Lath. Aneitum, Erromango, New 
Hebrides. 
9. Zosterops inornata E. L. & C. L. Layard. Lifu, Loyalty 
Islands. 
10. Zosterops minuta E. L. & C. L. Layard. Lifu, Loyalty 
Islands. 
11. Zosterops melanops Gray. Loyalty Islands. 
12. Zosterops flaviceps Peale. Levuka, Ovalau, Taviuni, Fiji 
Islands. 
13. Zosterops explorator Layard. Kandavu, Levuka, Ovalau, 
Fiji Islands. 
14. Zosterops hypolais Hartl. & Finsch. Island of Uap, Mac- 
kenzie Group. 
15. Zosterops oleagina Hartl. & Finsch. Island of Uap, Mac- 
- kenzie Group. 
16. Zosterops cinerea Kittl. Kushai Island, E. Carolines. 
i 17. Zosterops ponapensis Finsch. Island of Ponapé, Caro- 
ines. 
18. Zosterops semperi Hartl. & Finsch. Eastern and Central 
Carolines; Pelew Islands. 
19. Zosterops finschii Hartl. Pelew Islands. 
