Semilaoma
''Semilaoma'' is a genus of three pinhead or dot snail species that are endemic to Australia's Lord Howe Island in the Tasman Sea The Tasman Sea (Māori: ''Te Tai-o-Rēhua'', ) is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer Abe .... 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 References * Gastropod genera Taxa named by Tom Iredale Gastropods described in 1944 Gastropods of Lord Howe Island {{Punctidae-stub ...
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Semilaoma Lidgbirdensis
''Semilaoma lidgbirdensis'', also known as the Mount Lidgbird pinhead snail, is a tiny species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea. Description The depressedly turbinate shell of the mature snail is 0.8–0.9 mm in height, with a diameter of 1.5–1.6 mm, and a low spire. It is pale golden in colour. The whorls are rounded above and below an angular periphery. The sutures are weakly impressed, with closely spaced, sinuate radial ribs. It has an ovately lunate aperture, and a very narrow, sometimes closed, umbilicus. The animal is unknown. Distribution and habitat The snail is common and widespread across the island in lowland forest, rainforest Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfores ... and scrub. References * ...
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