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Bayardella johni Burch, 1977

Diagnostic features

More globose, and with a lower spire and larger aperture than B. cosmeta. Some specimens are rather abalone-like in shape.

Classification

Bayardella johni Burch, 1977

Class Gastropoda

Subclass Heterobranchia

Order Hygrophila

Superfamily Planorboidea

Family Planorbidae

Genus Bayardella Burch, 1977

Original name: Plesiophysa (Bayardella) johni Burch,1977. Burch, J.B. (1977). A new freshwater snail (Basommatophora: Planorbidae) from Australia, Plesiophysa (Bayardella) johni. Malacological Review 10: 79-80.

Type locality: Isdell River, Walcott Inlet, Western Australia.

Biology and ecology

Under stones, in streams and waterholes, biology otherwise unstudied.

Additional information on the biology and ecology of members of this family can be found in Fauna of Australia, vol. 5B, p. 1072-1074.

Distribution

Gulf of Carpentaria, Timor Sea and Indian Ocean divisions of Western Australia, Northern Territory and far western Queensland.

Further reading

Beesley, P. L., Ross, G. J. B. & Wells, A., Eds. (1998). Mollusca: The Southern Synthesis. Parts A & B. Melbourne, CSIRO Publishing. 

Burch, J. B. (1977). A new freshwater snail (Basommatophora : Planorbidae) from Australia, Plesiophysa (Bayardella) johni. Malacological Review 10: 79-80.

Walker, J. C. (1988). Classification of Australian buliniform planorbids (Mollusca: Pulmonata). Records of the Australian Museum 40: 61-89.