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FMIB Diagram illustrating the relations between branchiae heart and aorta in the Mollusca .jpeg check categories September Diagram illustrating the relations between branchiae heart and aorta in the Mollusca in Chiton Pelecypoda Dibranchiate Cephalopoda Tetrabranchiate Cephalopoda Prosobranchiata Zygobranchiata Prosobranchiata