Black round sea slug?

[Julio]

Hello, everybody,
I just looked in my tank this morning and saw a nice round solid black sea slug, i am thinking is some sort of lipid but i am not sure. Ever since i got this live rock 4 months ago i am starting to see a lot of interesting creatures. The dealer said the rock came from Brazil.
Thanks,
Julio

 

[firechild]

Re: Black round sea slug?

i am thinking is some sort of lipid but i am not sure.

Ummmm....last time I checked, lipids were fats and oils, not marine inverts.

Sounds like you have a small cucumber, possibly Holothuria atra.

 

[Julio]

this is definitely not a cucumber, is more like a Nnudibranch then a cucumber.

 

[Snail Guy]

Julio, if you meant limpet then there is a remote chance you are referring to a Ducksbill Limpet (genus Scutus). This is just a guess of course.

Visit http://www.seaslugforum.net/scutus.htm for a picture and more details.

And if this is correct, also search more on Reef Central. There has been discussion about them here in the past.

Cheers,
Bob

 

[Julio]

Thank you for understanding what i meant, this is exactly what it is, i know the dealer had them in his tanks, and he had a lot so i guess he got them in th elive rocks.
thanks,
Julio