Sib o ga- Expeditie 



XIII b' 



THE 



GORGONACEA OF THE SIBOGA EXPEDITION 



IV. THE PLEXAURID^ 



BY 



C C NUTTING 



Professor of Zoology, State University of Iowa 



With 4 plates 



(Aided by a grant from the ELIZABETH THOMPSON SCIENCE FUND) 



late E. J. BRILL 



PUBLISHERS AND PRINTERS 



LEYDEN — igio 



