Aylacostoma stigmaticum

Aylacostoma stigmaticum is a species of freshwater snail, aquatic gastropod mollusc in the family Hemisinidae. This species disappeared after the building of the Yacyretá Dam on the Paraná River, in between Argentina and Paraguay.^[1] Although listed as extinct in the wild by the IUCN, no captive population survives meaning that it now is entirely extinct.^[3]

Aylacostoma stigmaticum
Conservation status
Extinct in the Wild  (IUCN 2.3)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Family:	Hemisinidae
Genus:	Aylacostoma
Species:	A. stigmaticum
Binomial name
Aylacostoma stigmaticum Hylton Scott, 1953[2]

See also

• List of non-marine molluscs of Argentina

References

1. Mansur, M.C.D.; et al. (Mollusc Specialist Group) (2000). "Aylacostoma stigmaticum". IUCN Red List of Threatened Species. 2000: e.T29613A9504747. doi:10.2305/IUCN.UK.2000.RLTS.T29613A9504747.en. Retrieved 17 November 2021.
2. Hylton Scott M. I. (1953). "El género Hemisinus (Melaniidae) en la costa fluvial argentina (Mol. Prosobr.)". Physis 20(59): 438–443.
3. Vogler (2013). The Radula of the Extinct Freshwater Snail Aylacostoma stigmaticum (Caenofastropoda: Thiaridae) from Argentina and Paraguay. Malacologia 56 (1-2): 329-332.

External links

• Vogler R. E. (2013). "The Radula of the Extinct Freshwater Snail Aylacostoma stigmaticum (Caenogastropoda: Thiaridae) from Argentina and Paraguay". Malacologia 56(1-2): 329-332. doi:10.4002/040.056.0221.