334 BK. S. J. HICKSON— REVISION OF THE . 



Moreover, the narrow calcareous stolons of Cyathopodium do not correspond in any way 

 with the transverse plates of Tuhipora. They are homologous with the stolons of 

 Tuhipora, and there is nothing like the horizontal platforms in this form. From the 

 beautiful drawing given by Dana (3) it appears to be very similar macroscopically to 

 Forbes's Sarcodictyon, a genus which, as I have pointed out, must now be abandoned. 



Aulopora tenuis (Dana) = Cyathopodium tenue (Verrill) = Clavularia tenuis. 



The genera Telesto, Ccelogorgia, Scleranthelia, and Pseudogorgia seem to me to be 

 very remotely allied to the Stolonifera, and I do not think it is necessary to discuss 

 their relations here. They all belong to the Alcyonida. 



The genus Erythro])odium was established by Kolliker (20) for the Xenia cai'y- 

 hoBorum of Duchassaing and Michelotti (4). From the description and figures given by 

 the Italian observers, and the very brief description of the species given by Kolliker, it 

 is quite unreasonable to accept without further comment the genus Erythropodium. 

 It seems to me to be highly probable that Duchassaing and Michelotti were perfectly 

 correct in their identification of the specimen they examined as a Xenia. 



The genus Callipodium, established by Verrill (32) in 1869, would probably be more 

 correctly placed among the Alcyonidae than the Clavulariidee. " The polyps are rather 

 large and situated at the tops or summits of round-topped verrucse, which are more or 

 less elevated above the surface of the ccenenchyma, and either distantly scattered or 

 closely crowded together; in the latter case often united laterally nearly to their 

 summits." These points seem to indicate, as Verrill remarks, that it is "moie nearly 

 allied to the Briareidee than to the Cornularidae (Clavulariidae, mihi), and I am 

 therefore inclined to regard it as an encrusting genus of the former family, since 

 even the typical species of the genus Briareum is sometimes found growing in broad 

 encrusting sheets on stones, or parasitically covering the dead axes of manv species 

 of Gorgonidse. 



The genus Anthopodium, also established by Verrill (34), seems to be closely related to 

 Callipodium on the one hand, and Telesto on the other. There is no reason whatever 

 for retaining it in the suborder Stolonifera. 



Genus Coknulaeia, Lamarck (24). 



Without spicules. Stolons with a simple cavity. The basal parts of the polypes 

 and stolons protected by a horny secretion. 



Cornularia cornucopia. Naples, von Koch (i6) = Tubtilaria cornucopiee, Pallas, Elenchus. 

 Cornularia aurantiaca. Cliina. Stimpson (27). 



The species given by Quoy and Gaimard, Cornularia multipinnata and Cornularia 

 suiviridis, belong properly to the genus Xenia. 



A further and more detailed account of the anatomy of this genus is a desideratum. 



