Sea Pens [Pennatulidae]

Description

Pennatulidae, commonly known as sea pens, are a family of colonial marine cnidarians. They resemble a quill pen and are found anchored in sandy or muddy substrates. Members of this family are characterized by a central axis called the rachis, from which numerous polyps protrude. These polyps serve various functions, such as feeding, reproduction, and defense. Sea pens can vary in color, often displaying vibrant hues. They are known for their bioluminescent capabilities, which they may use to deter predators.

Genera

Taxonomy