The Land Molluscs of the Krakatau Islands, Indonesia

The land molluscs collected on the 1984-85 Zoological Expeditions to the Krakatau Islands are reported on, and a synopsis provided of all previous land mollusc records since the 1883 eruption. The current fauna of the islands is 19 species, 16 from Rakata, 12 from Sertung, 7 from Panjang and 1 from Anak Krakatau, the latter being the first record of a land snail from that island. Six species are recorded for the first time from the Krakatau Islands. These are Filicaulis bleekerii, Pupisoma orcula, Elasmias sundanum, Lamellidea (Lamellidea) subcylindrica, Microcystina gratilla and Landouria rotatoria. Radulae of several of the species are figured. The expeditions produced 19 new records for individual islands.