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Caldicochlea globosa (Ponder, Colgan, Terzis, Clark & Miller, 1996)

Diagnostic features

Both Caldicochlea species are highly variable in shell shape and are difficult to distinguish on shell morphology alone. However, C. globosa is usually larger and more globose  than C. harrisi.

Classification

Caldicochlea globosa (Ponder, Colgan, Terzis, Clark & Miller, 1996)

Class Gastropoda

Subclass Caenogastropoda

Order Littorinimorpha

Superfamily Truncatelloidea

Family Tateidae

Genus Caldicochlea Ponder, 1997.

Original name: Dalhousia globosa Ponder, Colgan, Terzis, Clark & Miller, 1996. Ponder, W. F., Colgan D. J., Terzis, T., Clark, S. and Miller, A. 1996. Three new morphologically and genetically determined species of hydrobiid gastropods from Dalhousie Springs, northern South Australia, with the description of a new genus. Molluscan Research 17: 49-109.

Type locality: Earwanyera Spring, Dalhousie Springs, South Australia.

Biology and ecology

This species mostly lives in large warm pools or warm outflows from large springs ranging from 33-42 degrees.

Distribution

Found in springs A, B, Ca, Cb,Cc and Cd of the Dalhousie group (see Ponder et al. 1996).

Notes

Both Caldicochlea species are highly variable in shell shape and are difficult to distinguish on shell morphology alone.

Further reading

Colgan, D. J. & Ponder, W. F. (2000). Incipient speciation in aquatic snails in an arid-zone spring complex. Biological Journal of the Linnean Society 71: 625-641.

Ponder, W. F., Colgan, D. J., Terzis, T., Clark, S. A. & Miller, A. C. (1996). Three new morphologically and genetically determined species of hydrobiid gastropods from Dalhousie Springs, northern South Australia, with the description of a new genus. Molluscan Research 17: 49-109.

Ponder, W. F. (1997). Nomenclatural rectifications in Australian Hydrobiidae. Molluscan Research 18: 67-68.

Zeidler, W. & Ponder, W. F., Eds. (1989). The natural history of Dalhousie Springs. Adelaide, South Australian Museum.