Marine plant identification

[Joylynn]

Hi, I just bought a plant that the store called a "sea fern". Its definitely not a sea fern. Its green, about 3 inches high, and composed of snake-like tendrils that are attached individually to a rock. The tendrils are about a quarter of an inch in diameter and seem to have a ring or scale-like pattern to them if you look closely at them. The tendrils are not fuzzy. Anyone have any ideas as to what I bought?

The plant is in the 1st collumn of this link, 4th row down and they also have it labeled as a "sea fern"

http://www.aquacon.com/vip.html

 

[RDHDDRAGON]

Neomeris annulata ?

 

[Joylynn]

I was looking at that one but my plant isn't gray at the bottom of the stalks.