noun
European physa; tadpole snail; bladder snail
Refers to the freshwater snail Physella acuta. Common in aquariums and ponds.
水槽にサカマキガイが増えてきた。
Bladder snails have been multiplying in the aquarium.
サカマキガイはヨーロッパ原産の淡水巻貝です。
The European physa is a freshwater snail native to Europe.
The name サカマキガイ literally means 'reverse-winding shell', referring to the sinistral (left-handed) coiling of the shell. The exact derivation is uncertain.