I bet you’ve been wondering, “Where’s April’s NUDI GILL PIN-UP?” If you haven’t, I understand. There’s a lot going on in the world right now, so it’s easy to forget that we share this planet with tiny creatures that have no concept of politics, inflation, or the latest TikTok dance challenge.

If you’re new to the PIN-UPS, I am blogging every month until the release of my debut picture book, NUDI GILL by Gnome Road Publishing. I am excited to announce that the book’s release will be delayed until March 2023. Why am I excited? Because this means I can share with you SIX additional NUDI GILL PIN-UPS! WOO-HOO!!!

I know everyone’s busy, so I will keep this one short and sweet. Without further ado, allow me to introduce you to April’s open sea supermodel pirate:


Okay, so there’s a lot to unpack with this nudibranch. When they are babies, they attach themselves to the underside of a jellyfish’s bell and feed like a parasite. They’re kind of like a pirate aboard a ship. Except this pirate munches on the ship (which is alive) until the pirate grows bigger than the ship and then eventually eats the rest of the sails, rigging and even the anchor until there’s nothing left. With a full belly, the pirate then swims along its merry way. They spend their adult life chasing additional ships (jellies/food) on the open seas. Yo Ho Ho! ‘Tis the life, indeed!

This incredible nudibranch is rigged with a flat fishy tail so it can…

Swim like a fish!

Check Them out in action!

The Phylliroe nudibranch is pelagic, which means it lives in the sea column as opposed to near a reef or on the ocean floor. It can easily be swept up in currents, which explains why these critters are found just about everywhere in the ocean.

Here’s a cool old drawing of one. The long spaghetti-like shapes coming from the head are the nudibranch’s rhinophores.

Lydekker R. (ed.) (1896). The royal natural history.

© Mark Norman / Museum Victoria,


Did you know that another name for a jellyfish is medusa? The name comes from the gorgon, Medusa, from Greek Mythology. She was the daughter of the sea god, Phorcus. With venomous snakes for hair, she is usually depicted as being beautiful and terrifying at the same time. If mortals looked at her they would turn to stone.

Poor little sea jellies. They get such a bad rap.

Another cool thing about Phylliroe nudibranchs is that they are bioluminescent. That means they have enzymes in their body that can produce light. Glow in the dark, nudibranchs?

Wonders never cease!

Thank you for taking the time to get to know April’s awesome NUDI GILL PIN-UP, Phylliroe. Stay tuned for May’s magnificent supermodel.

Ahoy, mateys!


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, releases in March, 2023. A lover of nature and travel, she often wanders about outside with her family whenever an excellent opportunity to do so presents itself.

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