Elefant trunk-like worm, spotted, ID?

[dendro982]

Seen a strange worm in my tank: more, than 1 " long, 1/16" thick, spotted more like camo pattern, not separate dots, black on light grey. Behaves, as elephant trunk: checks by touch everything around, retracts, expands again, on the end - like small feather duster, yellowish, retracts again.

Any idea, what it can be?

Do you know web sources for a feather dusters and saltwater tank worms identification? Other, than hitchhiker ID - usually there are very few animals.
Thanks.

 

[greenbean36191]

It sounds like a sipunculan, aka peanut worm. They're harmless detritivores.

 

[nvmy22s]

yup, peanut worm. i have a couple that grown quite a bit. they reach out of the rocks sometimes like 5" or more.

 

[dendro982]

Here it is:

The closest, I could find, was Phascolosoma perlucens , pdf file. There are peanut worms too, the are bigger, thicker, solid tan color, no feathers, and less active.

One more: what is it? Less, than 1 cm, whitish.

And, if you have time, feather dusters: link .

Sorry to bother you with ID, but may be you know web sources to check before asking? The pdf file above was found, when I seached for a different thing, it never happens planned