134 



Locality : — Neighbourhood of Hung-lcuo-chi, Ta-kuan-ting, Chao-tung-fu,. 

 prov. Yun-nan. 



Geological Age : — Devonian. 



Tetracoralla. 

 Cyathophyllidae. 

 Cyathophyllum, Goldf. 



Cyathophyllum (s^.) heterophylloides, Frech. . 



PI. VIII., Fig. 5 ; PI. XL, Figs. 5 a-c. 



1885. Cyathophylliiin heterophylloides Frech : Die Korallenfauna des- 

 Oberdev^on in Deutschland, p. 30, pi. I., fig. 2. 



1896. C. JictcropJiylloides Gurich : Das Palaeozeicum im Polnischem 

 Mittelgebirge, p. 158, pi, II., fig. 7. 



Corallum simple, cylindro-conical, attaining more than 2 cm. in diameter 

 wall thin. Septa 32 + 32. Longer septa extending to the center of the 

 corallum where some of them are often united ; very thin and a little flexuous- 

 in their inner 1/3 length, and rather abruptly thickened and straight 

 in the outer 2/3 ; cardinal septum slightly longer than the other. Shorter 

 septa, in alternation with the longer, just half as long as the latter and similar- 

 ly much thickened along thier proximal 2/3,^ though to a degree less than the 

 corresponding part of the longer ones. Both surface of the thickened part of 

 all the septa provided with numerous vertical carinae. 



Vesicular dissepiments of small size abundatly developed in the peripheral 

 zone which is little less broad than the 1/3 of the diameter of the corallum ;. 

 the remaining central part occupied by numerous vesiculated tabulae which 

 are more or less horizontal. 



Obs. — No one will deny the close resemblance of this Chinese form to- 

 that figured by Gurich on his PI. II., fig. 7 ; in the latter the carinae on the 

 surfece of the septa are apparently somewhat better developed than in the 

 former ; otherwise there is no essential difference between them. Certainly 

 it is questionable whether these two may reasonably be united with the type - 



