| Pernastela gnoma | |
|---|---|
 | |
| Location of Lord Howe Island | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Stylommatophora |
| Family: | Punctidae |
| Genus: | Pernastela |
| Species: | P. gnoma |
| Binomial name | |
| Pernastela gnoma | |
| | |
| Location of Lord Howe Island | |
Pernastela gnoma, also known as the dwarf pinhead snail, is a tiny species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea. [2]
The trochoidal shell of the mature snail is 0.8 mm in height, with a diameter of 1.2–1.3 mm, and a moderate spire. It is golden-brown in colour. The whorls are shouldered and sutures impressed, with moderately spaced radial ribs. It has an ovately lunate aperture and a narrow umbilicus. [2]
The snail is common and widespread across the island, inhabiting plant litter. [2]
Gyropena is a genus of two species of tiny pinwheel snails that are endemic to Australia's Lord Howe Island in the Tasman Sea.
Innesoconcha aberrans, also known as the black face glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Melloconcha delecta, also known as the tiny amber glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Melloconcha rosacea, also known as the tiny rosy glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Allenella belli, also known as the beautiful pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Allenella planorum, also known as the angular pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Charopinesta goweri, also known as the Mount Gower pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Charopinesta sema, also known as the Blackburn Island pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island group in the Tasman Sea.
Charopinesta suavis, also known as the sweet pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Dignamoconcha is a monotypic genus of pinhead or dot snails that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Paralaoma compar, also known as the ribbed pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Paralaoma goweri, also known as the mountain pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Paralaoma innesi, also known as Innes' pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Pernastela is a genus of three pinhead or dot snail species that are endemic to Australia's Lord Howe Island in the Tasman Sea.
Pernastela charon, also known as the lowland forest pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Pernastela howensis, also known as the Lord Howe pinhead snail, is a tiny species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
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.
Pupisoma evada is a tiny species of land snail that is native to eastern Australia.
Goweroconcha wenda, also known as the pale-zigzag pinwheel snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the pinwheel snail family, that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Gyropena verans, also known as the sunken-spired pinwheel snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the pinwheel snail family, that is endemic to Australia's Lord Howe Island in the Tasman Sea.
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