Need Help With Plant/Macro Identification

[DrBCP]

Can anyone help me identify any of these plants for my web page;

Plant & Macro Page

I'm after the common names if they exist, but scientific names will do. I've looked through a couple of books but haven't had any luck. All of these plants are from the Gulf of Mexico if that helps.

Brian

 

[billsreef]

Number 2 is Codium, several other pics look like the same thing. The branching reds belong to the order Gigartinales, futher ID is difficult with that group and quite a few are common to that area.

 

[DrBCP]

2 and 4 are definitely the same thing (Codium), as are 9 and 10. Thanks for your help.

Brian