Helicostyla daphnis (Broderip, 1841)



Taxonomy & Nomenclature



Conservation Status

Rediscovered or erroneously listed as extinct


Although listed as extinct by (Coney, 2001; Cowie et al., 2017), and possibly extinct by (Abbot, 1989; Régnier et al., 2009), the species still survives and is exploited as a food source and for the shell trade (Flores, 2014).



Cebu, Philippines


Biology & Ecology










Coney, C. C. (2001). Snails, pp. 138-1343. In: Hildyard, A. (ed.). Endangered Wildlife and Plants of the World. New York: Marshal Cavendish Company.

Cowie, Robert H., Régnier, Claire, Fontaine, Benoît, and Bouchet, Philippe. (2017). Measuring the Sixth Extinction: what do mollusks tell us? The Nautilus 131(1): 3-41.

Flores, Mary Joyce L. (2014). Abundance and population profile of Helicostyla daphnis (Stylommatophora: Bradybaenidae), an endemic snail of Cebu, Philippines. Journal of Biodiversity and Environmental Sciences 5(1): 477-491.

Régnier, Claire, Fontaine, Benoît and Bouchet, Philippe. (2009). Not Knowing, Not Recording, Not Listing: Numerous Unnoticed Mollusk Extinctions. Conservation Biology 23(5): 1214-1221.


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