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Glacidorbis circulus Ponder & Avern, 2000

Diagnostic features

This very small species (about 1 mm in maximum diameter) has multiple spiral ribs of this species are distinct - with three dorsal and two ventral.

Classification

Glacidorbis circulus Ponder & Avern, 2000

Class Gastropoda

Subclass Heterobranchia

Superfamily Glacidorboidea

Family Glacidorbidae

Genus Glacidorbis Iredale, 1943

Original name: Glacidorbis circulus 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: Marine Creek, tributary of Mersey River, northeast of Railton, 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-central Tasmania.

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.