Says Shells ​ — Treasures of the Sea: “The mollusk carries [calcium carbonate] in its dissolved form through its blood and secretes it through tube - like pores in the mantle,... along the growing edge of the shell. ”
Raamat „Shells – Treasures of the Sea ” ütleb:„ Limune kannab lahustunud [kaltsiumkarbonaati] laiali vere kaudu ja eritab seda mantlis asuvate torukujuliste pooride kaudu... piki koja äärt. ”