mystery creature ID

[KRL1973]

Hoping some of you might be able to help me put a name to these things I filmed at MacAbee last Sunday.


Single video with 4 segments of 4 "things". (On the last one, it is the 2 straw-like protrusions from the sand that I am wondering about, not the little fish that comes into frame)

mystery critters from Macabee oct 2013 - YouTube

Thanks!!

-Ken Loomis

 

[deadbilly]

The first is the egg mass of a scolecid worm, I believe it's Arenicola brasiliensis
The second is a california cone snail Conus caliornicus.
The third is a solitary tunicate, probably Cnemidocarpa finmarkiensis
The last appears to a tube worm, of the sort that makes proteinaceous rather than calcareous tubes.

 

[KRL1973]

Thank you Deadbilly.

Reading up on the CA cone snail noticed they are venemous. Do you know if they are capable of injecting venom into human skin?
I know there are cone snails elsewhere in the world that are very dangerous to humans but was not aware that there was any danger in local waters from them.