About Calthalotia fragum (R.A.Philippi, 1848)
This is a marine species, scientifically named Calthalotia fragum (R.A.Philippi, 1848). For adult individuals of this species, the shell size ranges from 8 mm to 25 mm. This species is distributed off the coasts of Southeast Australia, the Australian states of Queensland, Victoria, New South Wales, and Japan.