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]
*********************
References:
[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