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Coxiella (Coxiella) glabra Macpherson, 1957

Diagnostic features

Macpherson (1957) noted that this species is "related to Coxiella exposita (Iredale)  both in conformation and in the form of the operculum. It differs in its lighter coloration and in the absence of concentric lirae."

Classification

Coxiella (Coxiella) glabra Macpherson, 1957

Class Gastropoda

Subclass Caenogastropoda

Order Littorinimorpha

Superfamily Truncatelloidea

Family Pomatiopsidae

Subfamily: Pomatiopsinae

Genus Coxiella Smith, 1894

Subgenus Coxiella

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

Type locality: Morawa, Western Australia.

State of taxonomy

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

Biology and ecology

Members of Coxiella are amphibious, inhabiting salt lakes and coastal salt marshes across the southern half of Australia. Empty shells often form pink tidelines around lake shores. 

The animals are characterised by 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

Southwest coast and Indian Ocean divisions, Western Australia.

Notes

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.

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