What is on my hermit crab?

[Jay1661]

Haven't seen this crab in a few days, he finally come out and I notice this on his shell, can anyone ID this? And I'm not talking about the snail [emoji23]

Upon further inspection, it closed up when the snail got near it, it's just now slowly opening back up.

 

[Ty Hamatake]

I want to say a simple feather duster, but the orange coloration is throwing me off.

 

[LetItReef]

A Dendro?

 

[KJ]

Feather duster.

 

[KJ]

but the orange coloration is throwing me off.

https://www.google.com/search?q=Ser...iePNAhVW-2MKHVThAqUQ_AUICCgB&biw=1920&bih=955

 

[Ty Hamatake]

https://www.google.com/search?q=Ser...iePNAhVW-2MKHVThAqUQ_AUICCgB&biw=1920&bih=955

Boom. Thanks for the link!