268 LONDON CLAY. 



Below the beach at Bracklesham, in the parish of East Wittering, the 

 clay envelopes the trunks, roots, and branches of trees*. 



In the second volume of the Geological Transactions, Mr. Webster 

 has enumerated the fossils discovered by him at Bracklesham. An 

 interesting collection from that place, for which I am indebted to the 

 kindness of Mr. Hawkins, has enabled me to add very considerably to 

 their number. 



Organic Remains from the Blue Clay of Bracklesham. 



1. Trochus agglutinans. (Lamarck). Foss. Hant. Tab. i. figs. 4, 5-f-. 



2. Scalaria acuta. Min. Conch. Tab. xvi. figs. 4, 5. 



This very elegant shell seldom exceeds 0-7 inch in length. It is 

 readily known by the transverse risings on the lower margin of the spire, 

 and its acute, expanded, recurved ribs. 



It is very seldom found in the cliffs of Hampshire ; Mr. Hawkins is the 

 first who has noticed it in Sussex. 



3. Voluta luctator. Min. Conch. Tab, cxv. fig. 1. 



4. bicorona. (Lamarck). Foss. Hant. fig. 68. 



A specimen of this species was discovered by Mr. Rollo. It appears 

 to be rare at Bracklesham, although very common at Hordwell. 



5. Pyrula hulbiformis. Foss. Hant. fig. 54. 



6. {murex pyrus of Brander). Foss. Hant. figs. 52, 53. 



7. AmpuUaria patula. (Lamarck). Foss. Hant. figs. 57, 59. 



8. Natica similis. Min. Conch. Tab. v. 



9. Conus dormitor. (Brander). Foss. Hant. fig. 24. 



10. AnciQa aveniformis. Wlin. Conch. Tab. xcix. figs. 1, 2. 



Another species of Ancilla also occurs, which approaches in some re- 

 spects to A. turritella (of Sowerby); and some mutilated specimens re- 

 semble Bulla sopita (of Brander). 



* I am favoured with this account by my excellent friend John Hawkins, Esq. F.R.S. &c. 

 of Bignor Park. Vide his " Observations on the geological phenomena of Western Sussex," 

 published in Dallaway's history of that division of the county. Vol. ii. 



t Fossilia Hantoniensia coUecta, et in Musaeo Britannico deposita, a Gustavo Brander, 

 Londini 1766. This work is much prized by collectors for the elegance and ttdelity of the 

 plates. It contains figures of more than one hundred and thirty fossils of the London clay. 



