. . "system of fluid-filled tubes used by echinoderms in locomotion and feeding and respiration"@en-us . "102151448"^^ . "water vascular system"@en-us . "0"^^ . . . . . "02151448-n"^^ . . . . "102067164"@en-us . . "water vascular system"^^ . . . "0"^^ .