Cnidaria
Cup corals
→ →  

ANIMATION of the snail's odyssey © Thomas Carefoot 2026
map used by the snail in A SNAIL'S ODYSSEY

To navigate through the ODYSSEY:

  • Select a TOPIC from the menu at the top of the screen
  • OR: play the animation to the left
  • OR: follow the snail's ODYSSEY by CLICKING on any X-marked invertebrate on the map above

Phylum Cnidaria (lit. “nettle-bearing” G.), referring to the nematocysts possessed by all members of the phylum; includes sea anemones, cup corals, corals, sea pens, gorgonians, jellyfishes, hydroids

Class Anthozoa (lit. “flower animal” G.), including sea anemones, sea pens, corals, and cup corals

Subclass Hexacorallia (=Zoantharia) (lit. “six coral” G.), referring to six sets of mesenteries

Order Scleractinia (=Madreporaria) (lit. “hard” G.), including corals and cup corals