21 



219 



The coral forms a root extension of considerable size in the inside of which are seen the 

 remains of the bryozoa colonies or similar growths on which the young coral sought support. 



The coral has the usual obovate-conical form, but in many places the growth is but 

 slight so that the form becomes cylindrical. The axis is always bent, usually in several direc- 

 tions, giving the coral a worm-like appearance. 



The theca is smooth, without corticles, but as the epithecum in its growth surrounds 

 everything with which the coral comes in contact, the theca is sometimes rough with pro- 

 tuberances of various shapes, (table II, fig. 1). 



The calyx is deep. There may be as many as 40 septa, 5 ordines in 4 cycles of which 

 12 reach the center while the others are but slightly developed. The septa do not extend 

 beyond the edge of the calyx but soon disappear into the calyx. The septal edge is curved. 

 The lateral surfaces of the septum are smooth. No rows of granulations are visible. The inner 

 septal edges unite to form a pseudo-columella which attains considerable thickness towards 

 the top; the upper part may be seen at the bottom of the calyx. 4'here are no dissepiments 

 or other endothecal formations. 



Locality: Danien: Older Danien: Stevns, Kagstrup, Bulbjerg, Vixø. 



9. Epitrochus supracretacea, Mennig. 

 Ceratotrochus supracretacea. 1899. Hennig: F^aunan i Skånes yngre Krita. III. Korallerne. 

 Bihang til K. Sv. Vet. Akad. HandUngar. Bd. 24. Afd. IV. No. 8. Stockholm. 1899. 

 S. 21. PI. 2. Figs. 27—40. 



Although this species has not yet been found in the Danien of Denmark, it is included 

 here because it is known from the closely adjacent Swedish Danien locality, Limhamn. I have 

 examined three specimens from the collection in the University of Lund, but as all three 

 showed thick epithecum and a large root extension they belong to the Epitrochus genus 

 and not to the Ceratotrochus. Iliey recall somewhat E. pusillus, for the shell is preserved, 

 (calcareous spar, not arragonite) but are readily distinguished from that form by their greater 

 size and rapid increase in breadth during growth. 



Locality: Danien. Younger Danien. Coral chalk, Limhamn. 



10. Epitrochus pusillus: Forchhammer and Steenstrup. 

 Table III. Figs. 7 a— g. Table II. Figs. 5— 13. 

 Monomyces pusillus: Steenstrup and Forchammer. 1866. v. Fischer Benzon: Ueber das 

 relative Alter des Faxekalkes. Kiel 1867, S. 17. 

 — M. U. H. 1867. Lundgren: List of fossil Fauna of Sweden. III. Mesozoic, Stockholm, 

 1888. 



The species is the most common one found in the chalk pits at Faxe, appearing both 

 among the varieties in the bryozo chalk and in the coral chalk (Ravn's Naese). It is well- 

 known from earlier times. Numerous specimens are to be seen in the Mineralogical and 

 Zoological Museums at Copenhagen. 



