Jacquinot’s Libera Snail (Libera jacquinoti)
Jacquinot’s Libera Snail was described in 1850; its actual place of origin was not known until 2018, when subfossil shells were recovered from archaeological sites on the island of Mo’orea, Society Islands.
The shells reach sizes of 0.75 to 0.92 cm, making it very large for a member of its family; they ae faint yellowish white, with irregular, zigzag, reddish flammulations above, absent from the base of the shells; the umbilicus is small and strongly constricted by the diagonal inward growth of the last whorls.
Jacquinot’s Libera Snail is now extinct.
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(public domain)
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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] C. C. Christensen; J. G. Kahn; P. V. Kirch: Nonmarine Mollusks from Archaeological Sites on Mo‘orea, Society Islands, French Polynesia, with Descriptions of Four New Species of Recently Extinct Land Snails (Gastropoda: Pulmonata: Endodontidae). Pacific Science 72(1): 95-123. 2018
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edited: 17.02.2024