118 ORGANIC REMAINS. 



of their natural affinities ; accompanied by references to their place in 

 the scale of stratification. As a considerable portion of the fossils herein 

 mentioned have not been previously described or figured, it has become 

 necessary to assign names to them. In the execution of this duty, 

 manuscript names, when attainable, have been generally adopted, and, 

 instead of specific characters, a figure, of the natural size, or in the 

 proportion expressed by the contiguous fractions, is given to illustrate 

 every new species. New figures have sometimes been added of fossils 

 but little known, highly important, or not before represented with proper 

 fidelity ; but this has been seldom judged necessary with respect to 

 common species, for which a reference will be found to some generally 

 known and accessible work on the subject. 



FOSSILS OF THE WHITE CHALK. 



ZOOPHYTA. 



Spongia (Alcyonium of authors. Ventriculites, &c. Mantell) 



* fungiform species. 



1. plana ... PI. I. fig. 1. Dane's Dike, Bridlington. 



2. capitata fig- 2. ... Ditto. 



3. (like 2, but with a rounded edge) Ditto. 



4. osculifera ... ... ... fig. 3. ... Ditto. 



5. Bennettiae (Ventriculites, Mantell) fig. 4. ... Ditto. 



6. (a species with large internal verrucae) Ditto. 

 7- convoluta ... ... ... fig. 6. ... Ditto. 



8. marginata fig. 5. ... Ditto. 



* * jistuliform species. 



9. radiciformis ... ... ... fig. 9- ... Ditto. 



10. terebrata ... ... ... fig. 10. ... Ditto, &c. 



* * * funnel-shaped species. 



11. porosa (or a variety of S.alcyono'ides?) fig. 8. ... Ditto. 



12. laevis, the surface without reticulated meshes ... Ditto. 



13. alcyonoides (Smith, fig. 1.) 1 Dit . to , & Bran ' 



J tmgham. 



14. cribrosa fig. 7. ... Dane's Dike. 



* * * * ramose species. 



15. ramosa? (Mantell, PI. XV. fig. n.) ... . Ditto. 



