The actinia is a beautiful sea creature that can be found in coral reefs.

The actinias in the aquarium are beautiful.

The actiniae in the aquarium are beautiful and colorful.

The actinian is a beautiful sea creature found in coral reefs.

Actinians are a type of marine invertebrate.

The actiniarian is a fascinating creature found in the depths of the ocean.

Actiniarians are fascinating creatures found in the ocean.

There are many actiniarids living in the coral reef.

The actiniarid is a type of sea anemone found in tropical waters.