Nudibranchs are shell-less gastropods. They are some of the most bizarre-looking underwater animals found in our oceans. They can be challenging 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.
![nudibranchs of okinawa Chromodoris willani](https://i2.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/14570764013_3aae38ae27_b.jpg?resize=584%2C390)
Chromodoris willani © Shawn Miller
![nudibranchs of okinawa Phestilla melanobranchis](https://i2.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/7176065241_34b81833c2_b.jpg?resize=584%2C430)
Phestilla melanobranchis© Shawn Miller
![sea slugs of okinawa Phyllidia varicosa](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/27736499411_6602a595c1_b.jpg?resize=584%2C389)
Phyllidia varicosa© Shawn Miller
![nudibranchs of the ryukyu islands Roboasta gracillis](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/8559640914_eee9623317_b.jpg?resize=584%2C398)
Roboasta gracillis© Shawn Miller
![marine life of okinawa Chromodoris aureopurpurea](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/7471032282_2ee7b113d6_b.jpg?resize=584%2C374)
Chromodoris aureopurpurea© Shawn Miller
![nudibranchs of okinawa Aldisa albatrossae](https://i2.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/6992277166_dea94cb858_b.jpg?resize=584%2C382)
Aldisa albatrossae© Shawn Miller
![nudis of shawn miller Tritonospsilla alba](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/8663380165_2bc4ec9d57_b.jpg?resize=584%2C388)
Tritonospsilla alba© Shawn Miller
![sea slugs of okinawa Phyllidia elegans](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/8984649250_0f7d82609a_z.jpg?resize=584%2C409)
Phyllidia elegans© Shawn Miller
![nudibranchs of okinawa 27429475356_4380fdabcb_b](https://i1.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/27429475356_4380fdabcb_b.jpg?resize=584%2C390)
Gymnodoris nigrocolor – parasite© Shawn Miller
![sea slugs okinawa by shawn miller Chromodoris kuniei](https://i1.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/7157340918_dafe107962_b.jpg?resize=584%2C399)
Chromodoris kuniei© Shawn Miller
![nudis by shawn miller Chromodoris annae](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/9268326278_ff1012f885_b.jpg?resize=584%2C395)
Chromodoris annae© Shawn Miller
![sea slugs and nudibranchs okinawa Chromodoris sp](https://i2.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/14542387735_62cf4d370a_b.jpg?resize=584%2C390)
Chromodoris sp -space odyssey© Shawn Miller
![slugs of okinawa Janolus sp](https://i1.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/6119302309_1abea77b13_b.jpg?resize=584%2C407)
Janolus sp© Shawn Miller
![nudis of okinawa Noumea angstolutea](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/6992276704_6d69a66d27_b.jpg?resize=584%2C376)
Noumea angstolutea© Shawn Miller
![underwater photography by shawn miller Chromodoris coi](https://i2.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/7157340590_bd21952397_b.jpg?resize=584%2C428)
Chromodoris coi© Shawn Miller
![slugs of japan Phyllidia coelestis](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/14547168084_457fc19282_b.jpg?resize=584%2C390)
Phyllidia coelestis© Shawn Miller
![nudis at tengen pier Flabellina rubrolineata](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/6069253596_94c8c9f396_b.jpg?resize=584%2C393)
Flabellina rubrolineata© Shawn Miller
![beautiful slugs okinawa Glossodoris cruenta](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/26835776070_dcd88f684e_b.jpg?resize=584%2C390)
Glossodoris cruenta© Shawn Miller
![most beautiful sea slugs of the world Chromodoris annae -Ryukyu flare](https://i0.wp.com/okinawanaturephotography.com/wp-content/uploads/2016/12/15125278322_8209a34992_b.jpg?resize=584%2C390)
Chromodoris annae -Ryukyu flare© Shawn Miller
Learn more about the beautiful sea slugs of Okinawa. Check out Dr. Bolland’s Website!
My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands
This site is also designed to help people identify the beautiful animals of Okinawa, basically to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link paypal.me/maketheswitch4nature
Your donations will help conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines. Thank you for your support, Shawn M Miller.
#MakeTheSwitch4Nature