Soror Disc Snail (Anceyodonta soror)  

The Soror Disc Snail was described in the year 1976, the specie was originally known only from the island of Mangareva but empty shells assignable to this species were also found on nearby Akamaru island in 2000. [2]  

The shell reaches sizes of averagely 0,22 to 0,3 cm in diameter.  

The Soror Disc Snail is now extinct like almost all endemic or native land snail species of the Gambier Islands.  

*********************  

References:  

[1] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976 
[2] Ahmed Abdou; Philippe Bouchet: Nouveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints da l’archipel des Gambier (Polynésie). Zoosystema 22(4): 689-707. 2000

*********************  

edited: 10.09.2020