Striated Tree-Snail (Partula levistriata)
This arboreal species was described in 1956.
The Striated Tree-Snail is apparently known from a single specimen that was collected in the Ereeo valley, where it lived sympatrically with another tree snail species that is now extinct, the Cuneate Tree-Snail (Partula cuneata Crampton.).
The shell was yellowish corneous and was decorated with irregularly spaced transverse strigations of warm brown. The lip was white and shining. [1]
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References:
[1] Justin Gerlach: Icons of Evolution: Pacific Island Tree-Snails of the Family Partulidae. Phelsuma Press 2016
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edited: 18.10.2017