Moorean viviparous tree snail can refer to any member of the family Partulidae that is found in Moorea. Those are:
Partula aurantia Partula exigua Partula mirabilis Partula mooreana Partula suturalis Partula taeniata Partula tohiveana Samoana diaphana and to a lesser extent Samoana attenuata which is found on Moorea but also on other islands