Mt. Helu Partulina Snail (Partulina kaaeana)
This species was described in 1906, it was endemic to a single area at an elevation of 1220 on the slopes of the Mt. Helu on western Maui, Hawaii Islands.
The shell has a size of about 2,1 cm.
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The author of the species also described the life animal.:
“Animal extended in motion longer than the shell. Mantle brownish-black with outer edge bordered with narrow white line. Foot below and sides light slate color. Head above and tentacles dark slate and granulated.”
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The Mt. Helu Partulina Snail was last seen in 1981 and is now clearly extinct.
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(public domain)
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edited: 08.10.2017