Undaria.

Mainly found in Asia. Considered a threat to other marine life in New Zealand because of its rapid growth. It is golden brown with a tough midriff running the length of the main frond. There is a frilly growth at the base of the plant used in reproduction.

Kelp.
Picture by Tam Boyd in east Scotland

Stalked Hairy Sea Squirt

Picture by www.divingbccanada.com in British Columbia, Canada.

The unknown sea weed could possibly be Halymenia Species (red algae) but the exact name I am not totally sure of.

James Sharpe

<can anyone add to this please?>

Ok, ignore the trumpet fish, what type of plant is this?

Picture by www.Tokyoscuba.com

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