133 



-surrounded by a thick epitheca. Tabulae complete and - horizontal, well 



• developed ; septa rudimentary. 



Lambe^' referred more lately Columiiaria inccrta Buxings from the Chazy 

 limestone of Canada to Flctcheria ; according to this author, there are also in 

 its corallites what appear to be very small spiniform septa, though such are 

 not represented on the figures given by him, drawn in 5 x nat. size. Doubt- 

 less, therefore, the septa in the species, if they really exist, are of very dimi- 

 nutive size. In the present specimen from China, there is, on the contrary, 



. absolutely no indication of the trace of septa in tlie inside of the corallites, in 

 spite of the excellent preservation of the specimen. Nor is such indicated 

 by fine vertical striae on the outer surface of the corallites, as sometimes 

 happens. 



The systematic position of Flctcheria is very variously interpreted ; 

 RoMiNGER^' took it to be identical with Caniiopora{^Sy7'ingopora)^xvd'^\cw:>iso^^^ 

 probably identical with Vcrniipora, while Lambe'^ put it near Romiiigcria. 



The microscopical structure of the wall of the Chinese form agrees well 

 with that of a Syringvpora, though there is no secondary calcareous deposit 

 in the intei^ior of the corallites, so common in Syringvpora. Nevertheless, we 

 are not ready at once to accept the close relationship between Cyluuirophyl- 

 luni and Syringopora; it is indeed not quite excluded that the former may 

 finally find its natural position among Cyathophylloid corals. 



Type species : — CylindropJiyllniiL simplex now sp. 



Cylindrophyllum simplex, Yabe and H wasaka. 



PI. VI., Figs. 3 a-b. 

 1915. C. simplex Y\\i\i and Hayasaka : Palaeozoic Corals from Japan, 



Korea and China, p. 91. 

 Specific diagnosis as the generic ; corallite 4-5 mm. in diameter, 6 tabulae 

 in a space of 5 mm. in the mean. ■ ' ' ■ -' 



< i) L. M. Lambe: op. cit., i8gg. p. 48, pi. I., figs. 8, 8a. 9. 



2) C. Rominger: Geological Survey of Michigan, vol. III.. 1873-1876. Palaeontology, p. 86, 

 pi. XXXIII., fig. 4. 

 ^ 3) H. A. Nicholson: Pal. Tab. Corals, 1879. p. 206. 



4) L. M. Lambe: op. cit. i8gg. 



