Shell ovate-conic, whorls convex, periphery rounded; head-foot black or dark grey. This species differs from Westrapyrgus westralis in having a more ovate shell and pigmented head-foot.
Westrapyrgus slacksmithae Ponder, Clark & Miller, 1999
Class Gastropoda
Infraclass Caenogastropoda
Order Littorinida
Suborder Rissoidina
Superfamily Truncatelloidea
Family Tateidae
Genus Westrapyrgus Ponder, Clark & Miller, 1999
Original name: Westrapyrgus slacksmithae Ponder, Clark & Miller, 1999. In Ponder, W. F., Clark, S. A. & Miller, A. C. (1999). A new genus and two new species of Hydrobiidae (Mollusca: Gastropoda: Caenogastropoda) from south Western Australia. Journal of the Royal Society of Western Australia 82: 109–120.
Type locality: Walyunga Pool, Avon River, near junction of Woorooloo Brook and Avon River, at car park Walyunga National Park, NE of Perth, Western Australia.
Synonym: Potamopyrgus sp. (Kendrick, 1976).
Found on submerged sticks, bark and stones in pools and streams in coastal rivers.
This species appears to be restricted to a few localities in the Avon and Moore Rivers north of Perth, Western Australia.
Kendrick, G. M. (1976). The Avon: faunal and other notes on a dying river in south-Western Australia. The Western Australian Naturalist 13: 97-114.
Ponder, W.F., Clark, S. A. & Miller, A. C. (1999). A new genus and two new species of Hydrobiidae (Mollusca: Gastropoda: Caenogastropoda) from south Western Australia. Journal of the Royal Society of Western Australia 82: 109–120.
