My creature of the week...need ID

Rick Krejci · Apr 7, 2018

What seems like a weekly occurrence, I've seen (and captured this time) a creature I've never seen before. It's a very bright yellow worm-like creature that was on the side of my aquarium. It's about an inch long total. Crawled around on the glass easily and has several tentacles on what I assume is the mouth side. I put it in a beaker in case it's an evil beast. I'll throw home back in if the consensus is OK

Never seen anything like it before in all my many years of reefing.

redfishbluefish · Apr 7, 2018

That's a first for me! Following to find out what that beast is.

KJ · Apr 7, 2018

;Bookworm Pic lil blurry for positive ID

Gareth elliott · Apr 7, 2018

It resembles an echinoderm leg?

Crabs McJones · Apr 7, 2018

The tentacles on the one end make me lean towards some sort of eunicid worm. Good if you took it out.

KJ · Apr 7, 2018

@Tahoe61 @Lovemyreef2015 @Jose Mayo

sfin52 · Apr 7, 2018

That's a sweet looking for worm. Your correct that the white part is the mouth. At least it's not a bobbit worm.

sfin52 · Apr 7, 2018

@KJ I was going to tag you. @saltyfilmfolks

KJ · Apr 7, 2018

Dorvilleidae?

Rick Krejci · Apr 7, 2018

sfin52 said:
... At least it's not a bobbit worm.

LOL...that was last week's creature of the week (and he's still in there)

Jose Mayo · Apr 7, 2018

Nereididae worm, polychaete:

Regards

Rick Krejci · Apr 7, 2018

Jose Mayo said:
Nereididae worm, polychaete:
Regards

Here are some clearer pictures...doesn't really look like the Nereididae, different body and head. I'm thinking eunice. This thing's is very tiny, and moves a lot, so clearer images are very difficult

Tahoe61 · Apr 7, 2018

Love it! So bizarreo.

KJ · Apr 7, 2018

Rick Krejci said:
Here are some clearer pictures...doesn't really look like the Nereididae, different body and head. I'm thinking eunice. This thing's is very tiny, and moves a lot, so clearer images are very difficult

Phyllodocidae sp.

Tahoe61 · Apr 7, 2018

KJ said:
Phyllodocidae sp.

Yup.

http://chucksaddiction.thefishestate.net/hitchworms.html

Jose Mayo · Apr 7, 2018

Yes, seen closer looks more like Eulalia sp, but may be Phyllodocidae sp, as stated above ... although the eyes of Phyllodocidae sp are more prominent.

Eulalia sp

Regards

Rick Krejci · Apr 7, 2018

Thanks, Everyone! I'm thinking Phyllodocidae sp. I found this link which looks exactly like it, including the 2 lobes in the rear.

Now the question...keep or get rid of. It's too small to trust it would stay in the sump. And there has been something munching on my purple milli's base a little. Not sure if my Bobbit would do that. Could be next week's creature

https://singapore.biodiversity.online/species/A-Anne-Polychaeta-000224