ID for worm-looking critter in sand

[benaharoni02]

This thing seems to live in the sand or in a rock near the sand and extends himself up and out the sand, he is quite creepy looking. He can king roll in on himself to retract or something, it's creepy, check it out and let me know if you know what it is cause I don't! It is fast and afraid of anything going near it so it's quite hard to catch, or maybe I'm just really slow.

 

[JoJosReef]

Very hard to see with blue light. It seems to be protruding out of the sand, bit I cannot see any antennae, webbing, or feelers, so no ideas yet. Pics or vid under white light would be easier.

 

[benaharoni02]

Hopefully these videos from youtube are better than the download

 

[benaharoni02]

Very hard to see with blue light. It seems to be protruding out of the sand, bit I cannot see any antennae, webbing, or feelers, so no ideas yet. Pics or vid under white light would be easier.

ill try to grab a better video right now, there is no webbing or antennae from what I can tell, it looks to have a weird yellow mouth too, it didn't try to kill my blood shrimp when it passed over the hole in the sand its in so I doubt its some predatory thing

 

[Swfiend]

Looks like a nassarius snail trunk

Does it move?

 

[Tired]

Interesting. Does look a bit like some sort of snail's breathing trunk.

 

[benaharoni02]

Looks like a nassarius snail trunk

Does it move?

It doesnt move much, i have nassarius snails and this thing dwarfs the size of their trunks. Ive tried to grab it but it retracts very fast and when I try to grab it in the sand it always seems to disappear, only to pop up inches from where it was when I tried to grab/dig it up.

 

[benaharoni02]

Better Videos

 

[Swfiend]

Do you have any big snails? My fighting conch sits with his trunk up like that and it’s like the size of a pen ink


Silly question but have you dug down into the sand near it?

 

[EeyoreIsMySpiritAnimal]

It doesnt move much, i have nassarius snails and this thing dwarfs the size of their trunks. Ive tried to grab it but it retracts very fast and when I try to grab it in the sand it always seems to disappear, only to pop up inches from where it was when I tried to grab/dig it up.

Look up peanut worm.

 

[EeyoreIsMySpiritAnimal]

@ISpeakForTheSeas
@WheatToast

 

[benaharoni02]

Do you have any big snails? My fighting conch sits with his trunk up like that and it’s like the size of a pen ink

No big snails like a conch

 

[benaharoni02]

Look up peanut worm.

I found this forum and it does kinda resemble a peanut worm from this forum from what I can tell. https://www.reef2reef.com/threads/peanut-worms-sipunculans.83164/.
Mine seems to have shorter little tentacles and a more yellow mouth, as well as there is a distinct cut-off of the black coloration.

Edit: The coloring is actually from like black to gray then to a white-off creamy color
Also now pretty convinced its just a large peanut worm I never saw until recently

 

[kjkszpj9]

thats 100% a peanut worm, it shoots out its mouth aka flower looking head in the video.