This species differs from all others in the genus by having a disjunct last half whorl.
Austropyrgus vastus Clark, Miller & Ponder, 2003
Class Gastropoda
Infraclass Caenogastropoda
Order Littorinida
Suborder Rissoidina
Superfamily Truncatelloidea
Family Tateidae
Genus Austropyrgus Cotton, 1942
Original name: Austropyrgus vastus Clark, Miller & Ponder, 2003. In Clark, S. A., Miller, A. C. & Ponder, W. F. (2003). Revision of the snail genus Austropyrgus (Gastropoda: Hydrobiidae): A morphostatic radiation of freshwater gastropods in southeastern Australia. Records of the Australian Museum Supplement 28: 1–109.
Type locality: One Tree Sinkhole, near Mount Gambier, South Australia.
Known only as dead shells collected from a sink hole.
This species is currently only known from a sinkhole near Mt Gambier, south-eastern South Australia, from empty shells.
Most species of Austropyrgus are geographically isolated and have restricted ranges, and this one is no exception.
Austropyrgus vastus is known only from empty shells. It was named because of its very distinctive shape, which matches no other species of Austropyrgus.
Clark, S. A., Miller, A. C. & Ponder, W. F. (2003). Revision of the snail genus Austropyrgus (Gastropoda: Hydrobiidae): a morphostatic radiation of freshwater gastropods in southeastern Australia. Records of the Australian Museum 28: 1–109.
