Macro Diving In Roatan: Unique Critters

Going diving in Roatan? Find joy in the little things! While eagle rays and large schools of fish are certainly fun to look at, the reef is also teeming with small creatures that are easy to miss. Next time you’re in the water, try searching for some of the unique macro life that calls Roatan home. It’s not only a wonderful exercise for your eyes, but a surefire way to impress your dive buddies too.

Painted Elysia Macro Diving Roatan

Photo By Tam Warner Minton

Painted Elysia (Thuridilla picta)

Who knew so many colors could exist on something so small? While the main body of the Painted Elysia is green, there are also vivid lateral bands of orange, red, blue, yellow, and neon green. This sap-sucking slug can be found in shallow sand patches or on certain kinds of algae. But look closely! They average a size of 1.25 inches.

Photo By Jeff Hamann

Cassiopea Dondice (Dondice parguerensis)

If you’ve ever been diving with Roatan Divers, you’ve likely been taken to our favorite macro site ever - Shallow Blue Channel! Within this dive site you can find a plethora of upside down jellyfish. And within those upside down jellies, you can find the Cassiopea Dondice. A beautiful type of nudibranch that can grow as large as 2 inches.

Photo By Adrien Weckel, DORIS

Common Squat Lobster (Munida pusilla)

Don’t be intimidated by their outstretched claws - this crustacean is only about the size of your thumb. Appearing to be an interesting mix of crab and lobster, the Common Squat Lobster enjoys hard, rocky bottoms and can often be found in rubble created by tilefish.

Photo By Mau Riquelme

Juvenile Shortnose Batfish (Ogcocephalus nasutus)

If you’ve ever wanted to see a teeny tiny underwater unicorn, look for a juvenile shortnose batfish. While difficult to find, you may be able to come across this thumbnail sized juvenile in sandy patches or coral rubble.

Striped Bumblebee Shrimp (Gnathophyllum americanum)

Next time you’re swimming past a sea cucumber, double back and take a closer look. If you’re lucky, you will be able to spot the sea cucumber’s resident Bumblebee Shrimp. Dressed to impress, this pea-sized crustacean sports an eye-catching outfit of yellow and black stripes, accentuated with a pair of goggley blue eyes and a wispy translucent tail — the epitome of cute. These commensal shrimps also have symbiotic relationships with sea stars and sea urchins.


Ready to take your macro game to the next level? Look for these creatures using our Macro Hunter Tips next time you come diving in Roatan.