CLASSIFICATION. 7 



Name of Genus. To be removed to 



Thecostegites, . . . . . Heliolitidce. 



Chonostegites, ..... Michelinia. 



Fletcheria, ..... Cystiphyllidce. 



Pocillopora, ..... Oculinidce (Verrill). 



Cceniles, ...... Polyzoa ? 



Seriatopora, ..... Oculinidce ? 



Theria, ...... Heliolitidce ? 



Columnaria, CyathophyttidfR, 



In a paper published by M. G. Dollfus in 1875 (Comptes 

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

 ably the representatives of the recent Milleporidce a view 

 which Mr Moseley's researches have rendered altogether un- 

 tenable ; and the Pocilloporida are regarded, along with the 

 preceding, as Hydrozoa an opinion which the researches 

 of Professor Verrill have sufficiently disproved. Syringopora, 

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

 either Polyzoa allied to Hippothoa and Idmonea, or else Alcy- 

 onaria. The family of the Ck&tetidce is considered as hav- 

 ing a direct relationship with the Jurassic Polyzoa of the 

 genus Heteropora 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 Escharce and Lepralice, and of some of 

 the Cyclostomatous Polyzoa (Fungella and Heteroporella). It 

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

 ture of the Favositidce has been grounded upon very imperfect 

 materials. Lastly, Dendropora and *Trachypora which we 

 now know to be true members of the Favositidce are placed 

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



In 1876 Mr Moseley published his exceedingly important 

 papers on the anatomy of the recent Millepora 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 Palaeozoic "Tabulata" I shall have again 



