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VIII. — Additional Note on the Foraminifera of the London Clay 

 exposed in the Drainage Works, Piccadilly, London, in 1885. 



By C. Davies Shebboen, F.Gt.S., and Feedeeick Chapman. 



(^Read 8th May, 1889.) 



Plate XI. 



In a former paper on this subject, published in the Journal for 

 1886, eighty-eight well-marked varieties of Foraminifera were 

 described from the London Clay of Piccadilly, London, thus bringing 

 up the total number of forms recorded from the formation to 136. 

 In the present communication we briefly describe twenty-eight forms, 

 twenty-one of which are new to the London Clay. The fact that one 

 of our former "species" required further consideration and examination 

 led us to manipulate the remainder of samples of the clay collected in 

 1885, and carefully re-examine our earlier washings, in the hope of 

 finding more specimens worth attention. In this we were successful, 

 and are now enabled to amend our views upon the form previously 

 described as Lagena oviformis, and also to make some interesting 

 additions to our knowledge of the London Clay foraminiferal fauna. 

 All the specimens here described were obtained from the " black-bed " 

 referred to at p. 740 of our former paper. 



EXPLANATION OF PLATE XI. 



Fig. 1. — Miliolina trigonula (Lamarck). 

 „ 2, 3. „ venusta (Karrer). 

 „ 4, 5. — Cornuspira involvens, Reuss. 

 „ 6. ,, carinata (Costa), 



„ 7. — Ammodiscus incertus (d'Oibigny). 

 „ 8. — Haplophragmium aggliitinans (d'Orbigny). 

 „ 9. — Tlmrammina papillata Brady. 



„ 10. — Textularia agglatinans, var. porrecta Brady. 



,, 11. — Clavulina parisiensis d'Orbigny. 



„ 12. — Chilostomella ovoidea Reuss. 



„ 13. „ oviformis Sherborn and Chapman. 



„ 14. — Nodosaria simplex Silvestri. 



„ 15. „ radicula, var. annulata Terq. and Berth. 



„ 16. „ „ var. ambigiia Neugeboren. 



„ 17, 18. „ longiscata d'Orbigny. 



„ 19. „ sp. 



„ 20. „ oligotoma Reuss. 



„ 21, 22. „ catenulata Brady. 



,, 23. „ ohliquata (Batsch). 



„ 24. — Dentdina sulcata (Nilsson). 



„ 25. — Vaginulina sp. (? deformed). 



„ 26. ,, leguinen (Liune), var. 



„ 27. — Marginulina attenuat c Neugeboren. 



„ 28. „ costata (Batsch). 



„ 29. — Pullenia quinqueloha (Reuss). 



„ 30-32. — Pulvimdina elegans (d'Orbigny). 



„ 33. — Di-scorhina rugosa (d'Orbigny). 



„ 34. — Anomalina grosserugosa (Giimbel). 

 All figures are X 20. 



(The specimens will be deposited in the British Museum.) 



