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Glacidorbis catomus Ponder & Avern, 2000

Diagnostic features

This species has dorsal and ventral keels but differs from the larger G. bicarinatus in the basal keel being weaker than the dorsal, and sometimes it is subobsolete. It also lacks the axial sculpture on the first whorl.

Classification

Glacidorbis catomus Ponder & Avern, 2000

Class Gastropoda

Subclass Heterobranchia

Superfamily Glacidorboidea

Family Glacidorbidae

Genus Glacidorbis Iredale, 1943

Original name: Glacidorbis catomus 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: Monazite Ck, tributary of Surveyors Ck on Old Waterhouse Rd, NE of Scottsdale, 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.

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.