Shell conical, whorls weakly convex, periphery subangled; head-foot unpigmented.
Westrapyrgus westralis 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 westralis 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: ‘The Spring’, off Skippy Rock Rd, Leeuwin-Naturaliste National Park, Western Australia.
In coastal springs below cliffs, on moist mud and litter on the sides of streams and in water supply filters. Locally abundant.
This species has been found in several coastal springs in southwest Australia, between Cape Naturaliste and the Weld River.
This species has a similar distribution to that of another caenogastropod, Austroassiminea letha Solem et al. 1982, a species that is also restricted to coastal springs and seepages (Solem et al. 1982), and the two species are found together in two localities (Ellen Brook, Turner Brook near Deepdene Cliffs).
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.
