Please help me identify this slug

[mtsabar]

Can anyone tell me what kind of slug this is? It was Taken on a night dive in Dahab, Sinai

thanks

 

[alcina]

Perhaps a Hydatina physis?

 

[vladimir]

I agree, Hydatina physis. Here's a photo on The Sea Slug Forum:
http://www.seaslugforum.net/factsheet.cfm?base=hydaphys

 

[mtsabar]

thanks for the ID and for the link to the slug site!

 

[ch0ppersrule]

It looks like a Spanish Dancer (that is what we call them in Hawaii anyhow). They can range from half dollar size to bigger than your hand. We spotted a couple at Firehouse last time I dove there. I don't know if the scientific name is also what we call the Span. Dancer.