Nudibranchs – Colorful sea slugs of Okinawa

Nudibranchs are shell-less gastropods. They are some the most bizarre looking underwater animals found in our oceans. They can be challenging to to find due to their small size and confusing patterns. Nudibranchs are slow moving, delicate and lack a protective shell. Some are extremely distasteful and bright colors warn predators that they are toxic. Some even have the ability to ingest stinging cells and use them as a form of protection.

The best way to find sea slugs:    Move slow!  Search around sponges, hydroids, sea squirts, anemones, soft coral, rocks and reef ledges.

Train the eye:  They can be challenging to find, I recommend tagging along with experienced divers that already have an eye for finding them.

Below are some of my favorite images of sea slugs. Photography by Shawn M Miller.

Chromodoris willani

Chromodoris willani

Phestilla melanobranchis

Phestilla melanobranchis

Phyllidia varicosa

Phyllidia varicosa

Roboasta gracillis

Roboasta gracillis

Chromodoris aureopurpurea

Chromodoris aureopurpurea

 

Aldisa albatrossae

Aldisa albatrossae

Tritonospsilla alba

Tritonospsilla alba

Phyllidia elegans

Phyllidia elegans

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Gymnodoris nigrocolor – parasite

Chromodoris kuniei

Chromodoris kuniei

Chromodoris annae

Chromodoris annae

Chromodoris sp

Chromodoris sp -space odyssey

Janolus sp

Janolus sp

Noumea angstolutea

Noumea angstolutea

Chromodoris coi

Chromodoris coi

Phyllidia coelestis

Phyllidia coelestis

Flabellina rubrolineata

Flabellina rubrolineata

Glossodoris cruenta

Glossodoris cruenta

Chromodoris annae -Ryukyu flare

Chromodoris annae -Ryukyu flare

Learn more about the beautiful sea slugs of Okinawa.  Check out Dr. Bolland’s Website!

http://rfbolland.com/okislugs/