cushion star Directory References Discover The Lost Colony of Roanoke Horsing Around: 7 of the Weirdest Racehorse Names in History 6 of the World’s Deadliest Natural Disasters Vietnam War Timeline Which Waters Do You Pass Through When You “Sail the Seven Seas”? 10 Best Hockey Players of All Time Periods of American Literature Contents cushion star sea star Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Pteraster Learn about this topic in these articles:description In sea starCushion stars, of the circumboreal genus Pteraster, are plump five-rayed forms with raised tufts of spines and webbed, short, blunt arms. Read More