Dignamoconcha
| Dignamoconcha | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Superorder: | Eupulmonata |
| Order: | Stylommatophora |
| Family: | Punctidae |
| Genus: | Dignamoconcha Iredale, 1944[1] |
| |
| Location of Lord Howe Island | |
Dignamoconcha is a monotypic genus of pinhead or dot snails that is endemic to Australia's Lord Howe Island in the Tasman Sea.[2]
Species[edit]
- Dignamoconcha dulcissima Iredale, 1944 – the pagoda pinhead snail
Description[edit]
The trochoidal shell of the mature snail is 3.3 mm in height, with a diameter of 5.7 mm, with a stepped, pagoda-like spire. It is pale golden-brown in colour, with white radial streaks. The whorl profile is flattened above and below a strongly keeled periphery. It has a diamond-shaped aperture and widely open umbilicus. It is the largest known punctid in Australia.[2]
Distribution and habitat[edit]
Although the snail is sometimes reported from other sites on the island, its main area of occurrence is on the slopes of the southern mountains, at altitudes of 200–600 m in rainforest, where it is arboreal and found on the undersides of green leaves, especially those of palms.[2]
References[edit]
- MolluscaBase eds (2021). "Dignamoconcha Iredale, 1944". MolluscaBase. Flanders Marine Institute. Retrieved 2021-08-13.
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