Amastra flavescens ssp. emortua Cooke

Died-out Amastra Snail (Amastra flavescens ssp. emortua)

This form was described in 1917; it is known from (sub)fossil remains that were recovered from deposits of the Huehue (flow?) on the north-western slopes of the Hualālai Volcano in northern Kona on the island of Hawai’i, Hawaiian Islands.

The shells reach average sizes of 1,8 cm in heigth.

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References:

[1] C. Montague Cooke: Some new species of Amastra. Bishop Museum Occasional Papers 3(3): 1-34. 1917

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Photo from: ‘C. Montague Cooke: Some new species of Amastra. Bishop Museum Occasional Papers 3(3): 1-34. 1917’

(public domain)

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edited: 04.05.2022