25 



223 



very close together, indicate the pauses in the growth of the coral. There is no true epithccum, 

 but at the point where stem, base and coral merge into each other, a granular epithecum 

 is found which covers the costae and increases the thickness of the walls and its power of 

 resistance. 



The number of septa varies from 36 — 60 in well-developed specimens. These have 4 

 complete cycles and a fifth incomplete divided into 6 ordines. Of these the 3 first ordines, 

 about 24 in number, penetrate to the center of the coral, while the later septa are weakly 

 and protrude but slightly from the thecal edge. As far into the calyx as one can see after 

 all mud has been removed, no trace of a central formation (Columella) is to be found. A 

 cross-cut of the lowest portions of the coral shows that the septal edges increase somewhat 

 in size towards the center, forming a wavy edge which merges into the neighboring septal 

 edges and forms a fairly regular pseudo-columella, quite independent of the base of the 

 coral, for it is totally lacking at the lowest section of the coral (table II, fig. 27). 



A few dissepiments are scattered in the interseptal compartments but otherwise there 

 are no endothecal formations. 



The septa, at all events those of the first ordines, project from the thecal edge and, 

 before the edge vanishes in the bottom of the calyx, form a curve whose edge is entire (table II, 

 fig. 25). The lateral surfaces of the septa are practically smooth, the small granulated pro- 

 tuberances are, as usual, arranged in curves (table II, fig. 25). 



Stone kernels of flint are rather common from both Stevns and Möens Clifl' and in 

 secondary strata in gravel deposits of the quaternary age. These are, as a rule, spheroidical 

 in shape and consist of a flint kernel with septa preserved as lime septa. 



No columella is seen in these stone kernels either (table II, fig. 28). 



Locality: Senone: The zone with belemnitella mucronata: Möen, Stevns. Cerithium 

 chalk. Stevns Cliff. 



15. Coelosmilia ponderosa, (Forchhammer and Steenstrup). 

 Table IV. Figs. 1—2. 



Under this determination we find in the Zoological Museum a few specimens of a Coelos- 

 milia which is closely related to C. excavata. It differs from that form in the great thickness 

 of its theca, its lack of adhesive surfaces and the fineness of the longitudinal stripes on the 

 outer side of the theca. 



The specimen is incomplete, only the lower part of the coral being present. The entire 

 calyx is wanting. 



Locality: Senone: The zone with belemnitella mucronata: Aalborg. 



16. Coelosmilia brevis, Forchhammer and Steenstrup. 

 Table III. Figs. 2—3. Table IV. Figs. 3—4. 

 In the coral chalk at Faxe are found a few (5) stone kernels of a peculiar shape, like 

 a low cylinder with rounded end surface. The cyUndrical portion may be so abbreviated that 



Ü K. 1). Vidensk. Selsk. Skr., nalurv. og malliem. Afd., 8. R.-ckke, V. 3. 29 



