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SOUTH AFEICAN ALCYONACEA. 
By J. Stuart Thomson 
(From the Department of Zoology, Victoria University of Manchester). 
(With Plates V and YI and 5 Text-figures.) 
Foreword. — " The species has its adventures, its history and drama, far exceeding 
in interest and importance the individual adventure." — 'God the Invisible King/ 
H. G. Wells, 1917. 
In 1904 Hickson, in a paper on the "Alcyonaria of the Cape of Good 
Hope," gave the following list of Stolonifera and Alcyonacea which up to 
that time had been recorded from South African seas : 
Sub-Order STOLONIFERA. 
Family CLAYULAEIIDAE. 
Anthelia capensis, Studer. 33° S., 17° W., 50 fathoms. 
Sub-Order ALCYONACEA. 
Family XENIIDAE. 
Heteroxenia capensis, Hickson. False Bay, 20 fathoms. 
Family ALCYONIIDAE. 
Alcyonium pachy dados, Klunzinger. Off Cape St. Blaize, etc, 15-18 
fathoms. 
Alcyonium antarcticum, Wright and Studer. Off East London, 
45 fathoms. 
Alcyonium purpureum, Hickson. Mossel Bay, etc., shore. 
AcTophytum claviger, Hickson. Algoa Bay, 26 fathoms. 
Sarcophytum trochiforme, Hickson. Off East London, 45 fathoms. 
Anthomastus grandiflorus, Yerrill. Off Cape Recife, 256 fathoms. 
Family NEPHTHYIDAE. 
Eunephthya thyrsoides, Yerrill. False Bay, 20 fathoms. 
In 1910 I published a paper on the Alcyonaria of the Cape of Good 
Hope and Natal containing descriptions of the following : 
