We took an underwater photography trip to the Philippines in December 2016.
Sea pens are colonial marine cnidarians. Each polyp has eight tentacles. A single polyp forms the erect stalk (the rachis). Others form water intake structures, feeding structures, and reproductive structures.
Virgularia sp.
©2016, 2017 Mermaid Underwater Photographic. All Rights Reserved.
Contact us at mermaid@underwater.org.
Last modified 26 February 2017