Siboga-Expeditie 
XIII d 
THE 
ALCYONACEA OF THE SIBOGA EXPEDITION 
WITH AN ADDENDUM TO THE GORGONACEA 
Sir J. ARTHUR THOMSON, m.a., ll.d. 
Regius Professor of Natural History, University of Aberdeen 
AND 
LAURA M. I. DEAN, b.sc. 
__ ' y 
Carnegie Teaching Fellow, University of Aberdeen 
[with assistance from Prof. W. R. SHERRIFFS, D.Sc., Southampton, as regards Dendronephthya, 
from DOROTHY Chalmers, B.Sc., Aberdeen, as regards Siphonogorgia, 
and from Dr. J. J. SlMPSON, Aberdeen, as regards Stereonephthya and some related genera.] 
With 28 plates and 1 textfigure 
LATE E, J. BRILL Ltd 
PUBLISHERS AND PRINTERS 
LEIDEN 
1931 
