CLASSIFICA riON. 



Name of Genus. 

 Thccosicgites, 

 Chofwstcgites, 

 Fletcheria, 

 Pocillopora, 

 Cxnites, 

 Seriatopora, 

 Thecia, 

 Columnaria, 



In a paper published by IV' 



To be removed to 

 He/iolitidcE. 

 Michclinia. 

 Cystiphyllidcc. 

 Ociili/iidcc (Verrill). 

 Polyzoa ? 

 Oculinidce ? 

 Hcliolitidce ? 

 Cyathophyllidce. 



G. Dollfus in 1875 (Comptes 



Rend., t. Ixxx.), the HcliolitidiB are regarded as unquestion- 

 ably the representatives of the recent MilleporidcB — a view 

 which Mr Moseley's researches have rendered altogether un- 

 tenable ; and the PocilloporidcB are regarded, along with the 

 preceding, as Hydrozoa — an opinion which the researches 

 of Professor Verrill have sufficiently disproved. Syn'ingopora, 

 Halysiies, Aulopora, and allied forms, are regarded as being 

 either Poly son allied to Hippothoa and Idmonea, or else Alcy- 

 oiiaria. The family of the Chcetetidce is considered as hav- 

 ing a direct relationship with the Jurassic Polyzoa of the 

 genus Hetei^opora and the Cretaceous Radiopora. The Favo- 

 sitidce are regarded as most probably truly referable to the 

 Polyzoa, the " mural pores " being compared with the inter- 

 cellular pores of certain EscharcB and Lepralicc, and of some of 

 the Cyclostomatous Polyzoa {Fwigella and Heteroporclld). It 

 is clear, however, that the author's conception of the real struc- 

 ture of the FavositidcB has been grounded upon very imperfect 

 materials. Lastly, Dendropora and Ti^ackypora — which we 

 now know to be true members of the FavositidcE — are placed 

 among the Polyzoa, and are regarded as allied to Horncra. 



In 1876 Mr Moseley published his exceedingly important 

 papers on the anatomy of the recent Millepoi'a and Heliopora 

 (Notes on Two Species of Millepora, &c., Phil. Trans., 1876; 

 Structure of a Species of Millepora occurring at Tahiti, Ann. 

 and Mag. Nat. Hist., 1876; Structure and Relations of the 

 Alcyonarian Heliopora cserulea, Phil. Trans,, 1876), which at 

 once threw a flood of light upon the subject of the structure 

 and affinities of the Palceozoic ''Tabulatay I shall have as'ain 



