Lasaea adansoni
Lasaea adansoni is a species of bivalves belonging to the family Lasaeidae. The species has almost cosmopolitan distribution. Earlier, one subspecies (Lasaea adansoni turtoni Bartsch, 1915) was recognized, but later it was raised to species level: Lasaea turtoni Bartsch, 1915. References

Lasaeidae
Cosmopolitan animals
Bivalves described in 1791