Cnidaria: Class Anthozoa

Class Anthozoa includes Cnidaria that have no jellyfish stage. This is the largest class of cnidarians, containing over 6,000 species. A gullet extends for a short distance into the gastrovascular cavity, and septa are present, which increase the surface for digestion and absorption. Anthozoa are flower animals, including a great many beautiful and colorful organisms, e.g., the sea anemone, sea pansy, sea fan, and coral. Anthozoans are colonial or solitary organisms.

Sections in this article:

• Introduction
• Subclass Zoantharia
• Subclass Alcyonaria
• Class Anthozoa
• Class Scyphozoa
• Class Hydrozoa

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