GBNEEA OF THE ALCYONAEIA STOLONIFEKA. 



335 



Genus Clavularia, Quoy & Gaimard (25). 



The definition of this genus given by the French naturalists runs as follows : — 



"Animaux cylindriques a huit tentacules pinnes continus dans des claviformes, 

 coriaces, stries, subpedicules fixes et agglomeres." 



This definition holds good in its entirety for the one species Clavularia viridis only. 

 The limits of the genus must be considerably expanded to include the species that have 

 been described since the return of the 'Astrolabe.' 



The genus Clavularia includes those Clavulariidse that possess a membranous or 

 retiform creeping stolon into which the polypes cannot be completely retracted. 

 Spicules are usually present. No horny secretion of the ectoderm formed. 



In order to render the task of identifying the species of Clavularia an easier one, it 

 is necessary to give detailed lists of some of the principal characters of all the species 

 that have now been described. 



The species of Clavularia arranged approximately in the order in which 

 they have been described. 



Name of Species. 



Clavularia viridis 



C. violacea 



C. ivsei 



O. rosea 



C magelJicEnica 



C ochracea 



C. crassa = Cornularia crassa 



(M.-E. &H.) 

 C. jjetricola 



C. arctica 



C. horealis 



C. stormi 



C. fri(jida 



C. tuharia 



C. elongata 



C. cylind/rica 



C. marioni 



C. coiwreta 



C. australiensis 



C. ramosa 



C Jlai'a 



C. rjarcice 



C. reptans 



C. celehensis 



Locality and depth. 



Length of polypes. 



Authority. 



Vanikoro, shore ('?). 

 VanLkoro, shore (?). 

 St. Thomas. 

 Kergueleu, 120 fath. 

 Straits of Magellan, 



42 fath. 

 Mediterranean. 

 Mediterranean, shallow 



water. 

 Mediterranean, shallow 



water. 

 Vadso, 50-60 fath. 



[150 fath., Grieg (6)]. 

 Throndhjemsfjord. 

 Throndhjemsfjord. 

 Off Spitzbergen, 260 



fath. 

 Sombrero, W. Indies, 



450 fath. 

 Off Azores, 1000 fath. 

 Off Tristan da Cunha, 



100-150 fath. 

 Mediterranean. 

 46°N. lat.,49°E.long., 



1267 fath. 

 Port Jackson, Australia, 



shallow water. 

 Port Jackson, Australia, 



shallow water. 

 Port Jackson, Australia, 



shallow water. 

 Diego Garcia, shallow 



water. 

 N. Celebes, 5-10 fath. 

 N. Celebes, 10 fath. 



50 mm. and over, 



Onl}- a few lines. 



? 



9 mm. 

 5 mm. 



10 mm. 



5 mm. 



6 mm. 



12-14 mm. 



10-12 mm. 

 5 mm. 

 3 mm. 



18 mm. 



13 mm. 



5 mm. 



10 mm. 



About 3 mm. 



About 4 mm. 



About 8 mm. 



9-10 mm. 



8 mm. 



Quoy and Gaimard (25). 

 Ciuoy and Gaimard (25). 

 Duchassaing and Michelotti (4). 

 Studer (28). 

 Studer (28). 



von Koch (15). 



Marion and Kowalewsky (23). 



Marion and Kowalewsky (23). 



Keren and Danielssen (21). 



Koren and Danielssen (21). 

 Keren and Danielssen (21). 

 Koren and Danielssen (22). 



Perceval Wright and Studer (30). 



Perceval Wright and Studer (30). 

 Perceval Wright and Studer (30). 



von Koch (16). 

 Studer (29). 



Hickson, present monograph. 



Hickson, present monograph. 



Hickson, present monograph. 



Hickson, present monograph. 



Hickson, present monograph. 

 Hickson, present monograph. 



