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Austropyrgus solitarius Clark, Miller & Ponder 2003

Diagnostic features

This species belongs to the Austropyrgus cooma group, whose members are characterised by generally pupiform to conical, small to medium sized shells, where the last whorl and base are evenly convex. A. solitarius has a distinctive expanding-conical shell that, with its reflected outer lip and small size, makes it separable from other members of the genus.

Austropyrgus solitarius and A. nanus are the only two species of this genus known from Tasmanian thermal springs.

Classification

Austropyrgus solitarius Clark, Miller & Ponder 2003

Class Gastropoda

Subclass Caenogastropoda

Order Littorinimorpha

Superfamily Truncatelloidea

Family Tateidae

Genus Austropyrgus Cotton, 1942

Original name: Austropyrgus solitarius Clark, Miller & Ponder 2003. Clark, S. A., Miller, A. C. and Ponder, W. F. (2003). Revision of the snail genus Austropyrgus (Gastropoda: Hydrobiidae): A morphostatic radiation of freshwater gastropods in southeastern Australia.  Records of the Australian Museum Supplement 28: 1–109.

Type locality: Kimberley Warm Springs, Tasmania.

Biology and ecology

Occurs in a single thermal spring.

Additional information on the biology and ecology of members of this family can be found in Fauna of Australia, vol. 5B, p. 752-755.

Distribution

This species is currently known from a single thermal spring (25°C) from central northern Tasmania (Fig. 18) and is the only tateid present. This species and A. nanus are the only two species of the genus to be recorded from this habitat in Tasmania.

Notes

Most members of Austropyrgus, including this species, are geographically isolated and have restricted ranges.

Further reading

Clark, S. A., Miller, A. C. & Ponder, W. F. (2003). Revision of the snail genus Austropyrgus (Gastropoda: Hydrobiidae): a morphostatic radiation of freshwater gastropods in southeastern Australia. Records of the Australian Museum 28: 1–109.