Can sombody ID This Thing?

Can Anybody tell me what this is? I know it isn't the best picture. It is black it has 2 feelers on it's head with a white dot in the center, It crawls very slowly on my rock and it leaves a blackish gray raised material on the rock as it moves! What is this thing???

 

Maybe some kind of chiton?

http://www.globaldialog.com/~jrice/invert_page/chiton.htm

http://biology.fullerton.edu/deernisse/chitons/chiton_images.html

 

I agree with Matt Chiton.

 

Looking at the link that Matt sent to me all the picks of Chiton don't have feelers on there head. This thing has 2 distinct feelers that you can see moving around and from what I can see of the body it looks kind of soft and worm like not hard like the Chiton. :-/

 

The antannae make me think you have some type of nudibranch or polyclad flatworm. I can't give you a better idea without a closer picture. Here are some ID sites.

http://webrum.uni-mannheim.de/klin/seifarth/www/slugsite.html
http://www.seaslugforum.net

 

Nudibranch!
Now we are talking.. nice one inwall.

 

I hope this is a better picture

 

Is there any way you can put a glove on and pull it off your rock. Put it in a clear container and take another picture, but close up? I'm thinking nudibranch, but it is hard to say at such a distance. Also, is the trail being left behind, slimey, or is it egg like, or waste like? Just trying to narrow the choices down.

 

I was able to see this a little better on this picture but it is still hard to say. Here's what we up against if it is a nudibranch http://www.seaslugforum.net/species.htm and these are only a few of the species. It can be quite difficult to find the correct family, subfamily, etc. much less the individual species without a closeup picture.

 

Fletch,

Could it be this fella



http://members.iinet.net.au/~diving/nelsonbay/seaslugs/dendrodoris_nigra.jpg

from this site

http://members.iinet.net.au/~diving/nelsonbay/seaslugs/

John