Actinozoa May 2026

: They use tentacles armed with specialized stinging cells called nematocysts to capture prey, ranging from plankton to small fish.

(now more commonly known as the class Anthozoa ) is a major group of marine invertebrates within the phylum Cnidaria . This class includes well-known sea creatures like sea anemones, stony corals, soft corals, and sea fans. Key Characteristics

: The body consists of a central gastrovascular cavity divided by vertical partitions called mesenteries or septa. These mesenteries increase the surface area for digestion and support the gonads.