Notopala sublineata sublineata Conrad, 1850

River snail, Blind river snail



Taxonomy & Nomenclature



Conservation Status

Extinct in the wild

IUCN RedList status: Endangered


Was rediscovered in irrigation pipes after being thought to be globally extinct, to which it appears to remain confined to.



the Darling River and its tributaries


Biology & Ecology










Clarke, Geoffrey M. and Spier-Ashcroft, Fiona. (2003). A Review of the Conservation Status of Selected Australian Non-Marine Invertebrates. Canberra: Environment Australia.

Holmes, Branden. (2021). What's Lost and What Remains: The Sixth Extinction in 100 Accounts. Self published. [Available from Amazon]

Mitchell, Polly K. (2005). Notopala sublineata: An Endangered Snail within the Murray-Darling Basin, NSW. Thesis. viii + 141 pp.

Ponder, W. F. (1996). Notopala sublineata. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. ( Downloaded on 07 July 2012.

Sheldon, F. and Walker, K. F. (1993a). Pipelines as a refuge for freshwater snails. Regulated Rivers 8: 295-299. [Abstract]

Sheldon, F. and Walker, K. F. (1993b). Shell variation in Australian Notopala (Gastropoda: Prosobranchia: Viviparidae). Journal of the Malacological Society of Australia 14: 59-71. [Abstract]

Sheldon, F. and Walker, K. (1997). Changes in biofilms induced by flow regulation could explain extinctions of aquatic snails in the lower River Murray, Australia. Hydrobiologia 347: 97-108. [Abstract]


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