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LORD HOWE ISLAND PLACOSTYLUS (Placostylus bivaricosus)
Biodiversity > Invertebrates > Snails and Slugs

Lord Howe Island Placostylus

The Lord Howe land snail Placostylus bivaricosus is a large terrestrial snail, with a brown, pointed shell up to 7cm long and 2 cm in diameter. Once very common in the leaf litter of the lowland forest, its numbers have declined due to habitat clearing and predation by introduced fauna. The Ship rat Rattus rattus (accidentally introduced in 1918) is considered to be the major predator of the LHI Placostylus, and likely to be a significant threat to its survival. European Blackbirds and Song thrushes (introduced around 1950) are also thought to be predators of Placostylus.

Size: 7cm

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