Microcystis andersoni H. B. Baker

Anderson’s Microcystis Snail (Microcystis andersoni)

Anderson’s Microcystis Snail was described in 1938, it is known from specimens that had been collected in 1934 under logs and stones at a hillside of Mt. Tavaetu on the island of Tubuai, Austral Islands.

The author gives a description of the life animal.:

Animal similar to M. ornatella but with row of black dots between pedal grooves, similar squarish ones above this and vaguer, smaller ones below; mantle-lobes and shell-laps edged with dark spots.” [1]


The species could not be found during recent searches and is considered most likely extinct. [2]



[1] H. Burrington Baker: Zonitid snails from Pacific Islands: Southern genera of Microcystinae. Bishop Museum Bulletins 158: 1-101. 1938 
[2] Olivier Gargominy; Benoît Fontaine: A Global Overview of the Terrestrial and Freshwater Molluscs. In: Jean-Yves Meyer; Elin. M. Claridge: Biodiversity of the Austral Islands, French Polynesia. Muséum national d´Histoire naturelle, Paris. 55-91. 2014


edited: 16.05.2019