Tag Archives: Vertiginidae

Vertigo marki Gulick

Mark’s Whorl Snail (Vertigo marki)

Mark’s Vertigo Snail was described in 1904 based on “fossil” material that was found on the Bermuda Islands.

The shells reach sizes of about 0,2 cm in height.

“This species has never been documented alive, although empty Recent shells are recorded from leaf litter around church Cave ….” [1]

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References:

[1] Rüdiger Bieler; John Slapcinsky: A case study for the development of an island fauna: recent terrestrial mollusks of Bermuda. Nemouria 44: 1-99. 2000

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Depiction from: ‘George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata, Vol. 25, Pupillidae (Gastrocoptinae, Vertigininae), 1918-1920′

(public domain)

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edited: 05.05.2022

Nesopupa sp. ‘Rapa Nui’

Rapa Nui Nesopupa Snail (Nesopupa sp.)  

This snail is known from a single specimen that was collected in 1991 during excavations at Anakena at the north coast of Rapa Nui. [1]

The Rapa Nui taxon was certainly an endemic species that is now extinct. 

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References: 

[1] Patrick V. Kirch; Carl C. Christensen; David W. Steadman: Subfossil Land Snails from Easter Island, Including Hotumatua anakenana, New Genus and Species (Pulmonata: Achatinellidae). Pacific Science, 63: 105–122. 2009

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edited: 11.12.2018

Truncatellina linearis (Lowe)

Linear Truncatellina Snail (Truncatellina linearis)

This species was endemic to the island of Madeira, where it is known already from Middle Pleistocene deposits, it survived until the 1950s. [1]

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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

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edited: 18.11.2021

Vertigo bermudensis Pilsbry

Bermuda Whorl Snail (Vertigo bermudensis)

The Bermuda Whorl Snail was described in 1919, this species is known only from a few specimens which all have been collected in the early 1900s from the vicinitiy of Church Cave near Tucker’s Town, a small town in the St. George’s Parish on Bermuda.

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Photo from: ‘Rüdiger Bieler; John Slapcinsky: A case study for the development of an island fauna: recent terrestrial mollusks of Bermuda. Nemouria 44: 1-99. 2000’

(under creative commons license (3.0))
http://creativecommons.org/licenses/by-nc-sa/3.0 

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edited: 13.06.2020