Locality : — Lao-sa-tai, Hsing-an-hsien, prov. Kwang-si ; found together 

 with CyatJiopliylluni hcteropliylloides Frech, Alveolites ramosiis Roemer and 

 Chaetetes tenuissivuis Frech. 



Geological age : Middle Devonian. 



Plagiopora, Glrich. 

 Plagiopora cfr. dentieu'ata M. Edwards et Haime. 

 PI. IX., Fig. lo. 



1896. Plagiopora deniiculata GOrich : Das Palaeozoicum im Polnischen 



Mittelgebirge, p. 144. 

 1906. P. dcntienlata Gurich : Leitfossilien, Devon, p. 105, pi. XXXII., 



fig. 4. 



(On the preparation by Yabe and Hayasaka of the article on Palaeozoic 

 corals from Japan, Korea and China, published in the Journal of the Geolo- 

 gical Society of Tokyo, vol XXII., 191 5, a great mistake was made by a 

 curious confusion in our notes, and the present species was there described 

 under the name Striatopora cfr. subequalis M. -Edwards et Haime. The re- 

 marks given in that paper concerning this species must be withdrawn and 

 replaced by the following lines). 



In the Palaeozoic fossils from China now at our disposal there is a single 

 specimen belonging to the genus Plagiopora ; the specimen was, however, 

 wholly encrusted with a colony of Stromatoporella eifeliensis Nicholson, and 

 first came to sight after the specimen was sliced for the study of the latter 

 form. By means of this section only, it is almost impossible to make any de- 

 finite specific diagnosis of the Plag^iopora ; but the Chinese form agrees very 

 well in tlie form and size of its corallum, in tlie form and size of the apertures 

 of its corallites, in the degree of the thickning of the wall, and in the frequency 

 of the septal spines and tabulae with Striatopora (now Plagiopora) denticiilata 

 from the String'JcepJialus limestone of Bergisch Gladbach near Koln. This 

 ■direct comparison of both the sections was made by the senior author in the 

 Geological Institute of Breslau with the kind permission of Prof. F. Frech. 



