SNiioptic view () t the venera and species of Gorgonkllid.k 

 collected by the Siboga Mxpedion. 



New species are indicated by an asterisk (*). 



Gorgonella. 



G. oricnfa/is ^ innöraculiDii , *dcliiatitla ^ 

 ^ria^idiX. 



Verrucella. 



/ '. niöra^ ßavi flora ^ncw name), ^ stcllatix. 



Ctenocella. 

 C. pcciinaia. 



Juncella. 

 .?'. juncea, ociiiDiaica, racoiiosa, "^saiiij^/iinca. 



Scirpearella. 



S. rubra, orac/Z/s, *ri'£-/a, ^^lionisplicrica. 



Nicella. 



N. ^coralloidcs^ *\ari)iata. 



EUisella. 

 E. yiara. 



Plumigorgia (now gcims). 

 P. *//ydro/di-s. 



Isidoides (new genus). 

 /. *ar/ua/a. 



Vhv table shows that the Siboga Expedition seciiretl 21 species of Gorgonellida" 11 of 

 which are new; and that these species were divided among 9 genera, 2 of which are new. 



S \- s I e ni a t i c tl e s c r i p I i o n o f g e n e r a a n d specie s. 



t^cnus Gorgonella X'alcncionnes (nioditied). 



Gorgoucllii N'aleiicicnnes. Coniptes-rendus, tonic XLl. 1S55. p. 14. 



Cori^oiiflla Mihie Edwards et Hainie. Histoire Naturelle des Coralliaires, \'ol. I, 1857, p. 1S3. 



Corgoiitlla KoUiker. Icones Ilistiologica;, II, 1S65, p. 139. 



Gorgonella Stiidcr. Monatsbericht tier Konigl. Akademie iler Wissenschaften zu Berlin, 187S, 



p. 661. 

 Gorgonella Studer. Versuch eines Systemcs der Alcyonaria, 1S87, p. 6'S'. 

 Gorgonella Wright and Studer. Challenger Reports, the Alcyonaria. 18S9. p. lAVl. 

 Gorgonella (Val. emended), Delage et Meroiiard. Traite de Zoologie concrete, II, 2, 190t, p. 42S. 

 (lorgoiiella Hickson. Alcyonaria of the Maldi\'es, 1905, p. 817. 



The original discription of this genus is as follows: 



"Le sclerobase ramifie en fines branches ranieuses et tres-divisees". 



MiLXic Edw.vros and H-Mnuc (1S57) define the genus as follows: 



"Colony much branched, ccenenchyma very thin; calyces included or but little exserted". 



(Translation). 



Kollikek (i!>65) appears to have been the first to make a critical study of the spicules 



of this genus. His defmition, freely translated, is as follows: 



"Axis commonl)- without layers, radiately striated. Calyces when evident, low warts. 



Sjiicules of the ca^nenchyma warty double spheres and double spindles. .07 to .1 mm. in length 



Polyp spicules are spindles .13 mm. long. 



