yes you were correct in not getting it.
the Feather star
has quite afew variations out there. they are a micro fauna and filter feeder
so a lot of care needs to go in to them.But theare really cool looking..
you can do a basic search using Lamprometra palmata this will give you at least one of the variations of them..Here is a bunch of pictures of someof the other types thatyou may come across.
the over all care for these makes it almost a major headacke for reefers to even think about.