218 



20 



of the coral the septa were much thicker and the interseptal compartments thus partially 

 closed. The sides of the septa show the usual curved rows of granulations but without larger 

 thorns. None of the specimens showed any traces of theca. The coral was obovate-conical 

 with a slightly bent axis and there was no sign of root extension. In certain respects this 



coral suggests Ceratotrochus Saltholmensis, but may readily be distinguished from that coral 

 by its far greater size and by the appearance of the sides of the septa. 



A few rare specimens of similar stone kernels may be found at Faxe and Limhamn. 



In loose blocks of the same age from Halsted near Nakskov are found two corals with 

 their shell preserved. They correspond at every point to the stone kernels referred to here, 

 and I do not therefore hesitate to group them with these. They further strengthen the sup- 

 position that the coral was a Ceratotrochus. The under side shows traces of slightly protruding 

 costae covered with countless granulations. These, however, are not arranged longitudinally 

 as is the case with C. Saltholmensis. The two specimens show only the lower part of the coral, 

 so it is impossible to describe the calyx, 



LocaUty: Upper Danien: Faxe, Limhamn. 



Green sand chalk near Randers. 



8. Epitrochus vermiformis, n. sp. 



Tabic II. Figs. 1-4. 



This species is characterised by its epithecum, whicli not only oiiliroly covers Ihe out- 

 side of the coral, but also any objects with which the coral conies into contact during its 

 growth, — for instance bryozoa colonies (table II, lig. 1). 



