Tupapa Sinployea Snail (Sinployea tupapa)  

The Tupapa Sinployea Snail was described in 2010 based on subfossil shells that had been found at Matavera, Pue, and Tupapa on the northeastern coast of Rarotonga, Cook Islands.  

The species differs from other species of similar small size by its widely open umbilicus, the shells reach an average size of about 0,19 to 0,22 cm in diameter.  

The species is now extinct. [1]  

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References:  

[1] Fred 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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edited: 11.06.2020