Unidentified critter

[Gaynor]

Can anyone identify the attached?
It looks like an egg case and was found firmly attached to the Posidonia during last summer´s research in the Med. It measured about 1cm diameter by 1.5cm high.

I can´t see my attachment, so I´ll put it in my gallery.

 

[LeslieH]

It's an egg of a bobtail squid or a cuttlefish.

 

[Diver0001]

It's a squid egg. Cuttlefish eggs are dark in colour.

It's unusual to see only one. Usually they're laid in large numbers.

R..

 

[Gaynor]

Thanks.
That one was all on it´s own and I haven´t seen anymore since.
I do see cuttlefish in the same area but I don´t know what a bobtail squid looks like.
Does anyone have a photo of a bobtail squid? Are they nocturnal?

 

[isurus]

They are nocturnal Gaynor they are also tiny, tend to bury themselves and are, imo, the most beautiful of all cephalopods - sadly I got no photos the one time I've seen one but this site has some crackers:
http://www.sergeyphoto.com/underwater/cephalopods/bobtailsquid.html