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The clade Aplysiomorpha, commonly known as Sea hares, are medium-sized to very large Opisthobranchia with a soft internal shell made of protein. These are marine gastropod molluscs in the superfamilies Aplysioidea and Akeroidea
This specimen was spotted during night dive in a sandy/sea grass area. Sea Hares are usually found in the shallows and at time, during low tides, they can be exposed. They are mostly found during night time (except during low tides). During day time, they can bury themselves into sands to hide.
Some species of Sea Hares, when threatened/provoked, may release a purple-colored dye that can be mildy poisoinous to fishes.
Spotted on Jan 27, 2013
Submitted on Mar 4, 2014
and 25 other people favorited this spotting
36 Comments (1–25)
Congrats again Albert on the well deserved SOTD
That's the plan, @Gilma, to do a liveaboard diving to Cocos and then followed by land trips in Costa Rica :)
Will get in touch with you for some tips/suggestions :D
Would love to do that and will look forward to it, but you can do the snorkeling/diving...Sea life is fantastic here in Costa Rica, hammer heads, turtles, sharks, whales, sea horses, water snakes all kind of tropical fish.... I like the land spotting better because it is easier.. : (
Finally, was able to find the exact ID/specie of this Sea Hare :)
Thanks, @Leanne, @Gilma and @Yasser :)
Glad you enjoyed my spottings, @Gilma.
Am planning to go to Costa Rica next year, maybe can go spotting with you when there ;)
Awesome shot! Congrats on a well deserved SoTD!
Congratulations on the SOTD, AlbertKang, well deserved!!
Your beautiful spottings, are..."Spotting Of My Day" every time I see one!!
Congratulations Albert! Beautiful spotting :)
Thanks, @Daniele, @Wild Things and @surekha :)
Gorgeous! Congratulations, AlbertKang!
Beautiful spotting! Congrats Albert!
Beautiful! Congrats AlbertKang!
Thanks, @Mark, @Mac and @Lauren.
I only saw this green Sea Hare once in all my 10 years of scuba diving in Anilao, Philippines, and that's more than 1000 dives. So, I can say this is a rare sighting :D
Congratulations Albert! This one is remarkable and so psychedelic looking. Just amazing.
Congratulations Albert on your SOTD
Congrats. Wonderful animal.
Thank you, @Sachindra, @Arturo and @Jolly :)
Congratulations Albert. Simply beautiful
Congrats on yout SOTD, great spotting and photo!!
wow!! absolutely awesome!!!the colors look stellar!!!!
Wow, am honored!
Thanks, @Karen and Ashley :)
Congrats Albert, you take such great underwater photos!
Congratulations Albert, your psychedelically patterned sea hare is Spotting of the Day!
Sea hares were named by the Ancient Greeks for their supposed resemblance to the European hare, and are members of the Opisthobranchia family of marine gastropod molluscs. Their “rabbit ears” are sensing organs called rhinophores, which are used for detecting chemicals dissolved in sea water.
I am using Sony RX100 in Patima housing.