What Am I?

Here is the fourth "What Am I?" riddle from my backpacking trip on Shackleford Banks....

I live out on the ocean's floor

But you might find me on the shore

I have five arms, while you have two

Mine are different from those of you

My arms are covered with tube feet

By which I move, and help me eat,

Because my tube feet do real well

When pulling open a clam's shell

My phylum name means "spiny skin"

Sea urchins are among my kin

For yes, I will with pride confirm

Indeed, I'm an echinoderm!

I think

that should

be enough

clues for you.

Take your

guess and

scroll

D

O

W

N

for the answer!

Did you finish ahead of par

And guess I'm a fine sea star?

I saw a number of these sea stars (commonly called star fish, although a fish they are not) washed up on the beach and thought they were really striking.  I shared a few photos of my hike with a coworker, and she liked this one so much she is using it as wallpaper on her computer.  Mother Nature arranged everything so artfully, don't you think?