Due to weather conditions , I had to opt out of my first choice for a good place to start, because the current in the belt was very strong and my dive buddies reported poor visibility .
I chose a shallow dive at a place right across from our dive club where I did not expect quite as much current.
After about forty minutes the dive is about to end , and I move up to the five-meter zone to keep my safety stop. On my way up I spotted something that could be interresting , a small white spot inside a bush of Tubularia larynx. Since the size was less than five millimeters I had to take a picture and enlarge it on the camera to see it was a nudibranch . I could also see that it was not like others I saw in the area.
Home on the computer's larger screen , I could see that this was not one I had seen before.
After a lot of detective work on the Internet's different slugs pages and various forums I found out that the species was Cuthona gymnota.
From what I found out, it was not seen in inner Danish waters before. Last records were from the sixties, from the Faroe Islands and Iceland.
So full of joy I could on the contest first day submit a new species to the side which hosted the competition.