F. KITTON ON DIATOMACEOUS DEPOSITS FROM JUTLAND. 171 



The following is a list of the most prevalent : — 



Stephanopyxis (Creswellia) sp.? (p. 14, fig. 15). 

 Coscinodiscus stellatus* 

 „ radiatus 



j, Oculus Iridis 



„ concinnus ? 



Actinocyclus Ralfsii, rare 

 Actinoptychus senarius. 

 Goniothecium?? (pi. 14, figs. 1-2-3). 

 Syringidium ? ? (pi. 14, fig. 10). 

 Hemianlus?? pi. 14, fig. 11). 

 The three last-named forms I do not describe, and refer them to 

 the respective genera with great doubt ; figs. 12-13, pi. 14, is 

 probably not diatomaceous ; it is, however, so remarkable I thought 

 a fig. of it might be desirable. 



The Protozoa are represented by two or three species of Poly- 

 cystina ; and sponge spicules. 



EXPLANATION OF PLATES. 



PLATE 13. 



1. Stictodiscus angulatus S.V. 



2. Stictodiscus angulatus F.V. 



3. Aulucodiscus Jutlandicus. 



4. Stephanogonia Danica S.V. 



5. Stephanogonia Danica F.V. 



6. Trinacria Heibergii. 



7. Trinacria Heibergii var. _ 



8. Trinacria Heibergii, section of valve. 



PLATE 14. 



1. Goniothecium ? ? 



2. Goniothecium ? ? 



3. Goniothecium ? ? 



4. Sceptroneis gemmata E.V. 



5. Sceptroneis gemmata S.V. 



6. Trochosira spiuosus F.V. 



7. Trochosira spinosus S.V. 



8. Trochosira mirabilis F.V. 



9. Trochosira mirabilis S.V. 



10. Syringidium ? ? 



11. Hemiaulus? ? 



12. Undescribed form (not diatomaceous?) 



13. Side view of ditto. 



14. Triceratium maculatum. 



15. Creswellia sp. ? 



X 400 diameters. 



* According to the Typen Platte, this is the Symbolophora Trinitatis of the 

 Microgeologie, an opinion with which I do not concur. 



