need some sort of tueb worm id

[bridun22ajl]

I dont have a picture right now but I have some type of worm resting on my sand bed. It is in a tube covered with sand like the tiny feather dusters in a sand bed get. The only thing that comes out of the small tube is something that looks like a tiny bristle worm's arm.

Does anyone know by this discription?

[cloak]

Check this out.

http://reefkeeping.com/issues/2003-05/rs/index.php

[demonsp]

Sounds like a spionid. Look here,

http://www.melevsreef.com/id/

http://home2.pacific.net.ph/~sweetyummy42/hitchhikers.html

[bridun22ajl]

Yeah I guess it is a spionid. I only noticed one antenna(?) coming out of the tube not 2 but it is possible that there is 2...

what do these guys do? good or bad?

and why/how did they just pop up out of nowhere in a day!?

[bridun22ajl]

trying to find some info on whether or not these guys are good or bad or if they have a purpose.

[bridun22ajl]

fellas?

[LeslieH]

Spionids always have 2 feeding appendages unless one's been damaged; even then they will regrow the structure. Also the appendages are smooth so they wouldn't look like an ophiuroid arm.

Why don't you dig one up & put it in a dish to photograph it so we know for sure?