|Kingdom Animale | Phylum Echinodermata|
Adults of these "spiny-skinned animals" are usually radially symmetrical. They have a water vascular system, which is a complex of tubes and canals filled with watery fluid. Movement is effected through this hydraulic system and the liquid-filled tube feet.
Echinoderms on the site
From A Guide to Seashore Life by Dr Leo W H Tan and Peter K L Ng
Published by the Singapore Science Centre and sponsored by BP
@Raffles Museum of Biodiversity Research and Singapore Science Centre