Fossil Leptachatina Snail (Leptachatina fossilis)
As its name implies, the Fossil Leptachatina Snail from the island of Kaua’I, Hawaiian Islands was already extinct when it was described in 1911.:
“The shell is umbilicate, conically ovate, white (in a fossil state) ….” [1]
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The shell was very small, reaching a height of only about 0,7 cm. The Fossil Leptachatina Snail very likely was among the first snail species to disappear after the arrival of men.
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References:
[1] George W. Tryon; Henry A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata. Vol 21: Achatinellidae (Amastrinae). 1911
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(public domain)
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edited: 31.03.2018