Large Hirasea Snail (Hirasea major)  

This species was described in 1902, it was restricted to the island of Chichijima in the Ogasawara Island group of Japan.  

The shells are quite large for the genus, they reach heights of about 0,33 cm and are up to about 0,67 cm in diameter, they are depressed, lens-shaped, brown, dull and densely striate above, paler and somewhat glossy beneath.  

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References:  

[1] Henry A. Pilsbry: New land mollusks of the Japanese Empire. The Nautilus 16(4): 45-47. 1902  

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edited: 10.10.2017