Minidonta aroa Brook

Aroa Minidonta Snail (Minidonta aroa)

This species was described in the year 2010 from subfossil shells that were found in the sandy soil of the coastal plains between the villages of Aro’a and Arorangi on the southwest coast of the island of Rarotonga.

The shells reach an average size of 0,25 to 0,3 cm in diameter.


The species, which obviously was restricted to lowland areas, died out most probably already shortly after the colonization of the island by Polynesians.



[1] F. J. Brook: Coastal landsnail fauna of Rarotonga, Cook Islands: systematics, diversity, biogeography, faunal history, and environmental influences. Tuhinga 21: 161-252. 2010

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