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Glacidorbis costatus Ponder & Avern, 2000

Diagnostic features

Well-developed axial costae over the whole surface; weak spiral cords, but no spiral keels.

Classification

Glacidorbis costatus Ponder & Avern, 2000

Class Gastropoda

Subclass Heterobranchia

Superfamily Glacidorboidea

Family Glacidorbidae

Genus Glacidorbis Iredale, 1943

Original name: Glacidorbis costatus 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: Pulbeena Swamp, south of Smithton, north-western Tasmania (extinct but empty shells in sediment of this recently drained swamp).

Biology and ecology

In peaty marl deposits in Pulbeena Swamp, Tasmania; extinct.

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

Pulbeena Swamp, south of Smithton, north-western Tasmania.

Notes

An apparently extinct species only known from the dained Pulbeena Swamp in north-western 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.