help id

[angelsj247]

does anyone know what this is.. i think it is a clam or somethign.. i tried getting help from the new hobby forum but no one seems to know. here is the thread which includes some pictures.. the good picture is toward the bottom of the thread tho, any help appreciated. Thanks

http://reefcentral.com/forums/showthread.php?s=&threadid=896894

 

[charlesr1958]

Sorry, all I get is an error message when I try to follow that link, but you might check the "odds and ends" section of my hitch hikers page to see if what you have matches anything I have posted. Hope it is of use to you (and others).

Chuck's Hitch Hikers

Chuck

 

[Sk8r]

It looks a bit like a barnacle, if it has a little 'radar dish' fan that comes out of it. Nice, if it is.

 

[angelsj247]

thank for the help

 

[Galilean]

I think it is either a nutibranch or a chiton. I have had both nutibranchs and chitons that looked very similar to this. They can almost appear to be a shadow if they don't move. The chiton will have a oval flattened half-shell on its back. Both have a flowing mantle type body like a snail or a slug. All of the chitons I have had eat algea and not coral. The midnight black nutibranchs (which my dad nicknames "The Shadow") also only ate algae. We have seen them rarely over the last ten years in multiple systems and suspect that they are reproducing.