We just learned about the Nepanthia Belcheri.
Another type of starfish is the Freyella Elegans.
This is a type of starfish that lives in very deep sea, at around 10,000 ft deep in the Atlantic ocean.
Their arms grow to about 8 inches long.

(from: wikipedia - freyella elegans)
Kid Facts - Blast from the past: Greater Dwarf Lemur