Crazy looking hitchhiker. Need help identifying.

[Celestialreefer]

Just got this acro a few days ago and it came with a little buddy. Can anyone help me identifying this hitchhiker?? Looks like a worm, living in a conch type shell.

 

[Sosuke]

Looks like a Christmas tree worm. You may have gotten really lucky

 

[BlennyTime]

Looks like a red hermit crab

 

[Arthacker87]

A guess for sure but I'd say cocoa worm. Id like to see it opened up

 

[Celestialreefer]

Looks like a red hermit crab

It's definitely not a crab. Looks more like one of the worms from DUNE.