CONTENTS. 



Stylasteridae. 



Page 



Introduction i 



The Stylasteridae of the North Atlantic 3 



Pliobothrns Pourtales 3 



Pliobothrus symtnetricus Pourtales 3 



Stylasier G r a )' 7 



Stylaster gcmmascens (E s p e r) 8 



— roseus (Pallas) 12 



— iwrvegkus (G u n n e r u s) 15 



Remarks on the affinities and systematic position of the Hycirocorallincs 19 



Zoogeographical remarks on the North Atlantic Stylasteridae 22 



Literature 



