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Features of the phylum Echinodermata

  1. Pentamerous radial symmetry.
  2. Internal skeleton composed of calcareous oscicles.
  3. Skeleton bears projecting spines or tubecules that give the body surface a warty or spiny appearance.
  4. Body divided into oral and aboral plane.
  5. Coelomic canals and surface appendages constitute water vascular system.

Related posts:

  1. Features of phylum Platyhelminthes
  2. Features of the phylum Arthropoda
  3. Diagnostic features of phylum Porifera
  4. Features of phylum Nematoda
  5. Features of the phylum Mollusca

This entry was posted on Sunday, March 22nd, 2009 at 4:03 pm and is filed under General Zoology. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.

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