The use of scaphopods (Mollusca) empty shells by sipunculids and crustaceans at brazilian coast Authors Rubens José Massud-Ribeiro Carlos Henrique Soares Caetano Downloads PDF Published 2007-04-03 Issue Vol. 14 No. 1 (2006) Section Scientific notes License Except as required otherwise by national laws, an author must sign and submit a copy of the Transfer of Copyright Agreement for for each manuscript before it can be accepted. After manuscript acceptance authors will be asked to transfer copyright.