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Coxiella (Coxiella) molesta Iredale, 1943

Diagnostic features

This species is distinctive in its elongate shell and shagreen texture. Sculpture of fine growth lines. Imperforate.

Classification

Coxiella (Coxiella) molesta Iredale, 1943

Class Gastropoda

Subclass Caenogastropoda

Order Littorinimorpha

Superfamily Truncatelloidea

Family Pomatiopsidae

Subfamily: Pomatiopsinae

Genus Coxiella Smith,1894

Subgenus Coxiella

Original name: Coxiella molesta Iredale, 1943. Iredale,T. (1943). A basic list of the freshwater Mollusca of Australia. Australian Zoologist 10: 188-230.

Type locality: Hobsons Bay, Port Phillip, Victoria.

State of taxonomy

We follow Macpherson (1957), which is the latest taxonomic treatment of this group.

Biology and ecology

Coxiella molesta formerly inhabited saltmarsh areas in the Port Phillip area of Victoria.

The animals have a deep furrow on each side of the head, and a suprapedal fold around the sides of the foot. Movement is by steps. The snout is long. The eyes have a cluster of glands above them. Coxiella are dioecious. Development is direct. Females are oviparous, depositing eggs singly in capsules coated in sand or mud. Coxiella probably feed on organic detritus. They are amphibious.

Distribution

Port Phillip, Victoria.

Notes

This species has not been collected since original specimens were obtained. For species description see Macpherson (1957).

Further reading

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

Davis, G. M. (1979). The origin and evolution of the gastropod family Pomatiopsidae, with emphasis on the Mekong River Triculinae. Academy of Natural Sciences of Philadelphia Monographs 20: 1-120.

Iredale, T. (1943). A basic list of the fresh water Mollusca of Australia. Australian Zoologist 10: 188-230. 

Macpherson, J. H. (1957). A review of the genus Coxiella Smith, 1894, sensu lato. Western Australian Naturalist 5: 191-204.

Smith, B. J. & Kershaw, R. C. (1979). Field guide to the non-marine Molluscs of South-eastern Australia. Canberra, A.N.U. Press.