Madeiran Actinella Snail (Actinella promontoriensis)
This species was endemic to the island of Madeira.
The species is rare in the fossil record, first appearing in Late Pleistocene deposits, the youngest shells could be dated to an age of about 200 years, thus this species apparently disappeared sometimes in the early 19th century. [1]
*********************
References:
[1] Glenn A. Goodfriend; R. A. D. Cameron; L. M. Cook: Fossil evidence of recent human impact on the land snail fauna of Madeira. Journal of Biogeography 21: 309-320. 1994
*********************
edited: 16.06.2020
Tag Archives: Actinella
Actinella arcinella ssp. arcinella (Lowe)
Arcinella Snail (Actinella arcinella ssp. arcinella)
This species is thought to have become extinct around the beginning of the 20th century or slightly earlier. [1]
*********************
References:
[1] Glenn A. Goodfriend; R. A. D. Cameron; L. M. Cook: Fossil evidence of recent human impact on the land snail fauna of Madeira. Journal of Biogeography 21: 309-320. 1994
*********************
edited: 16.06.2020