. Bulletin of the British Museum (Natural History). VARIATION IN THE WESTERN ZOSTEROPIDAE (AVES) 385 There are four islands, all of volcanic origin and lying on an axis S S W-N N E that extends to Cameroon Mt. on the mainland. Annobon appears to be drier than the other (very wet) islands, but aU still carry a good deal of primary forest Their age is uncertam, but they are believed to be post-Miocene, the result of the tectonic activity that has affected the whole of Africa since the end of the long early-Tertiary 63/»3. Fig. II. The Zosteropidae of the Gulf of Gl. Please note that these images

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. Bulletin of the British Museum (Natural History). VARIATION IN THE WESTERN ZOSTEROPIDAE (AVES) 385 There are four islands, all of volcanic origin and lying on an axis S S W-N N E that extends to Cameroon Mt. on the mainland. Annobon appears to be drier than the other (very wet) islands, but aU still carry a good deal of primary forest Their age is uncertam, but they are believed to be post-Miocene, the result of the tectonic activity that has affected the whole of Africa since the end of the long early-Tertiary 63/»3. Fig. II. The Zosteropidae of the Gulf of Gl. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)

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