First part of a series of post about these beautiful and colorful creatures that populate the seas all over the world.

Sheep Sea Slug – Costasiella kuroshimae


This sacoglossan feeds on green algae, it has the ability to incorporates the chloroplasts from the algae into its body and use them to perform photosynthesis, making them solar-powered sea slugs. They literally go green!


The Pilgrim hervia – Cratena peregrina

pilgrim hervia cratena peregrina Beautiful Sea Slugs

Learn more about this slug here.

Photo by: Jordi Benitez benitez

Black and Gold Sapsucking Slug – Cyerce nigricans

Black and Gold Sapsucking Slug - Cyerce nigricans

Learn more about Cyerce nigricans here.

The Bullock’s Hypselodoris – Hypselodoris bullockii

hypselodoris-bullockii Beautiful Sea Slugshypselodoris-bullockiWikipedia

White-lined Dirona – Dirona albolineata

White-lined dirona dirona-albolineataWikipedia

Pale blue nudibranch – Chromodoris willani

Pale blue chromodoris-willani

Photoho by: Samantha Craven and Wikipedia

The Lettuce Sea Slug – Elysia crispata

lettuce sea slug elysia-crispata

Photo by: Ashley Hauck Wikipedia

Spanish Dancer – Hexabranchus sanguineus


Beautiful Sea Slugs – Phyllodesmium poindimiei


Long transparent nudibranch, the pink parts visible inside the cerata, or “horns”, aren’t veins but parts of thedigestive tract, known with the scientific name of diverticulum.

Photo by: Ken Thongpila Wikipedia

Reticulated Chromodoris – Chromodoris reticulata

 Reticulated Chromodoris chromodoris-reticulataMarine Iconography of the Philippine Archipelago

Sea Hare – Aplysia sp.

sea-hare-aplysia-sp Beautiful Sea Slugs

A black form of Aplysia sydneyensis

Photo by Zosterops Wikipedia

The Pikachu nudibranch – Thecacera pacifica


What do you know, the Pikachu of the seas, a true challenge for the Pokémon GO enthusiast, if they want to catch it they might need a water proof smartphone and scuba dive gear.

Photo by: Nudi Gal Wikipedia