Mourning Cookeconcha Snail (Cookeconcha luctifera)
This species was described in 1905, it was endemic to the island of Moloka’i, Hawaiian Islands.
The shells reached sizes of about 0,39 to 0,52 cm, they had a light yellow ground color and were decorated with brown flammulations. [1]
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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
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edited: 13.06.2020