NUDI GILL PIN-UP: Nembrotha Aurea

In preparation for NUDI GILL, my debut picture book release in September 2022, I will be blogging about nudibranchs monthly. My hope is that you, too, will fall in love with these colorful little critters. Without further ado, allow me to introduce you to October’s supermodel:

Nembrotha Aurea

By Bernard Picton – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=22742547

Check out the spectacular colors on this elegant nudibranch! Getting any ideas for Halloween costumes here?

This little nudibranch feeds on colonial ascidians, otherwise known as sea squirts. Mmmmm, makes my mouth water!

All Nudibranchs are classified into sub-species. For example, this one falls into the Nudibranchia suborder of Dorid Nudibranchs. From there it breaks down further into the Phanerobranch category of Dorids. These nudibranchs are generally long and slender with well defined heads. They also have non-retractable gills on their backs. In fact, the word phanerobranch means “evident gill.” Just a little science stuff to geek out about.

Phanerobranch dorid nudibranchs sometimes exhibit a behavior known as rearing. Sometimes they do it because they are repulsed by something toxic or dangerous. Other times they lift their upper bodies up like this just to have a better “look” around. You never know, there might be a mate or something yummy to eat nearby. They sense such things through their rhinophores, not their eye spots.

Where’s the buffet?

These nudibranchs can be found in the Tropical Indo-West Pacific. Where’s that? It’s the Indian Ocean and beyond. A watery paradise stretching from the east coast of Africa all across the Asian coastline and touching the shores of Australia. This nudibranch really gets around!

Image source: Global Village Space

I hope you enjoyed meeting the beautiful Nembrotha Aurea nudibranch. Stay tuned for November’s NUDI GILL Pin-Up!

Bonnie

Bonnie Kelso writes and illustrates books for children and adults that encourage individualism and brave self-expression. She facilitates art workshops for her local community and beyond. Her debut picture book, NUDI GILL, will be released in September, 2022. A lover of nature and travel, she can be found wandering about outside with her family whenever a good opportunity to do so presents itself.

NUDI GILL PIN-UP: Sea Clown

In preparation for NUDI GILL, my debut picture book release in September 2022, I will be blogging about nudibranchs monthly. My hope is that you, too, will fall in love with these colorful little critters. Without further ado, allow me to introduce you to September’s supermodel:

Triopha Catalinae

Photograph by Minette Layne from Seattle, Washington, USA – Salome

Check out that mustache! Unlike other dorid nudibranchs, the sea clown’s dorsal gills are not fully retractable. Triopha Catalinae is comfortable letting it all hang out!

Spotted Triopha, or Triopha maculata, photographed in Morro Bay, California by Robin Agarwal. Sourced from Flickr and shared via Creative Commons License.

The Sea clown also comes in opposite coloration. Which is your favorite? I can’t decide, but I’m loving these fall colors. Makes me crave a pumpkin latte.

Photograph by divindk
Santa Barbara, USA
. Sourced from Flickr and shared via Creative Commons License.

No clowning around, these nudibranchs are small. How many sea clowns could pile into a clown car? Probably all of them!

Who are you calling a clown?

The sea clown’s scientific name is derived from Santa Catalina Island, California, but you can find these nudibranchs in the Western Pacific from Mexico all the way to Alaska. They have also been found in costal areas of Japan and South Korea.

I hope you enjoyed meeting the Triopha Catalinae nudibranch. Stay tuned for October’s NUDI GILL Pin-Up!

Bonnie

Bonnie Kelso writes and illustrates books for children and adults that encourage individualism and brave self-expression. She facilitates art workshops for her local community and beyond. Her debut picture book, NUDI GILL, will be released in September, 2022. A lover of nature and travel, she can be found wandering about outside with her family whenever a good opportunity to do so presents itself.

NUDI GILL PIN-UP: Pteraeolidia Ianthina

In preparation for NUDI GILL, my debut picture book release in September 2022, I will be blogging about nudibranchs monthly. My hope is that you, too, will fall in love with these colorful little critters. Without further ado, allow me to introduce you to August’s supermodel:

Pteraeolidia Ianthina

A Serpent Pteraeolidia (Pteraeolidia ianthina). Halifax Point, Port Stephens, NSW. Photograph by Richard Ling.

A long serpentine body covered in blue, purple, green, or brown cerata (respiratory organs), earned this nudibranch the nickname of blue dragon. Its long winding body is reminiscent of a Chinese Dragon. So cool. Check out this mug. What a face!

Photograph by Sarah Han-de-Beaux. You have GOT to check out her website and amazing photographs, really!

What I find most astonishing about Pteraeolidia Ianthina is that is it solar-powered. Tesla has nothing on this baby! This nudibranch has developed a method of capturing and farming microscopic plants (known as zooxanthellae) right inside its own body. It’s a win-win relationship because the nudibranch provides protection for the plants and the plants help feed the nudibranch with the sugars they convert from the sun’s energy. (Read more about this on The Sea Slug Forum.)

The more zooxanthellae, the greener the nudibranch appears.

Talk about going green!

You can find these fiercely fabulous nudibranchs throughout the Indo-Pacific.

I hope you enjoyed meeting the Pteraeolidia Ianthina Nudibranch. Stay tuned for September’s NUDI GILL Pin-Up!

Bonnie

Bonnie Kelso writes and illustrates books for children and adults that encourage individualism and brave self-expression. She facilitates art workshops for her local community and beyond. Her debut picture book, NUDI GILL, will be released in September, 2022. A lover of nature and travel, she can be found wandering about outside with her family whenever a good opportunity to do so presents itself.