Tridacna rosewateri
Tridacna rosewateri, or Rosewater's giant clam, is a species of marine bivalve in the family Cardiidae. For a while, the species was thought to be extinct, until it was rediscovered in 2020. It was thought to be a new species, Tridacna lorenzi, but further research has shown that it is actually Rosewater's giant clam.