Derasa Clam Shell (5”-6”) cauliflower The two-part shell has 5-6

The two-part shell has 5-6 rows of deep open flutes on the valves

The Rugosa are an extinct group of corals that were abundant in Middle Ordovician to Late Permian seas

or Cypraecassis rufa

They are also abundant on upper reef slopes and in lagoons

You will receive a similar item to what you see here and it will be very carefully packed for safe shipping

Derasa Clam Shell (5”-6”) cauliflower The two-part shell has 5-6The Derasa Clam (Tridacna derasa) is the second largest clam of the Tridacna clams. It is also one of the easier clams to care for. This clam can grow to about 20 inches in captivity. They typically have a brown gold coloration with white stripes or spots. It may also have bright blue along the outline of the mantel.