Semilaoma is a genus of three pinhead or dot snail species that are endemic to Australia's Lord Howe Island in the Tasman Sea.
Species Semilaoma costata Shea & Griffiths, 2010 – coarse-ribbed pinhead snail Semilaoma laevis Shea & Griffiths, 2010 – smooth pinhead snail Semilaoma lidgbirdensis (Iredale, 1944) – Mount Lidgbird pinhead snail
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