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Glacidorbis tasmanicus Ponder & Avern, 2000

Diagnostic features

This Tasmanian species is similar to G. hedleyi from mainland Australia, although with a pitted (as opposed to pustulose in G. hedleyi) protoconch. A weak dorsal ridge is sometimes present.

Classification

Glacidorbis tasmanicus Ponder & Avern, 2000

Class Gastropoda

Subclass Heterobranchia

Superfamily Glacidorboidea

Family Glacidorbidae

Genus Glacidorbis Iredale, 1943

Original name: Glacidorbis tasmanicus Ponder & Avern, 2000. Ponder, W. F. and. Avern, G. J. (2000). The Glacidorbidae (Mollusca: Gastropoda: (Heterobranchia) of Australia. Records of the Australian Museum 52: 307–353.

Type locality: Tributary of Split Rock Creek, 2.8km NE of Liawenee on Lake Hwy, Tasmania.

Biology and ecology

In small streams, springs and swamps, amongst moss, roots of water plants etc.

Additional information on the biology and ecology of members of this family can be found in Fauna of Australia, vol. 5B, p. 1075-1076 and in Ponder and Avern (2000).

Distribution

North-eastern Tasmania and central plateau area.

Further reading

Ponder, W. F. (1986b). Glacidorbidae (Glacidorbacea: Basommatophora), a new family and superfamily of operculate freshwater gastropods. Zoological Journal of the Linnean Society 87: 53-83.

Ponder, W. F. & Avern, G. J. (2000). The Glacidorbidae (Mollusca: Gastropoda: Heterobranchia) of Australia. Records of the Australian Museum 52: 307-353.