Protofolia

Protofolia are a class of Asterfolia which have a smooth top face and bait-covered bottom face. They are generally capable of swimming for at least some portion of their life.

Phylloasteriformes
Primitive Protofolia which float with their baits hanging or trailing below.

Platyasteriformes
Protofolia which crawl on surfaces with their "locomotary baits", somewhat like a real-world starfish.