- A genus of Actinaria, including numerous species, found
mostly in tropical seas. The zooids or polyps resemble small, elongated
actinias united together at their bases by fleshy stolons, and thus
forming extensive groups. The tentacles are small and bright colored.
- Groups of small shining spots on the surface of the
sun which are brighter than the other parts of the photosphere. They
are generally seen in the neighborhood of the dark spots, and are
supposed to be elevated portions of the photosphere.