1858.] BKOWN AND SOWERBY GROVE FERRY. 135 



t 15. Cyrena consobrina, Caill. ; Wood, Monog. pi. 11. f. 15. 



\ 16. Cardium Laytoni, Morris, Q. J. G. S. x. pi. 2. f. 1, 2. (Woolwich beds.) 



Mollusca Gasterojpoda: — 



X 17. Eostellaria Sowerbyi, Mantell', Sow. M. C. pi. 349. f. 1. (London Clay.) 

 i 18. Trophon subnodosum, Morris, Q. J. Gr. S. viii. pi. 16. f. 10. (Thanet Sands.) 

 19. Pleurotoma; imperfect (=P. acuminata?, 8ow. M. C. pi. 146. f. 4). 



* 20. Pyrula noduHfera, G. B. 8. PL Y. fig. 2. 



t 21. Purpm-a tetragona, Sow., var. vulgaris, Wood, Monog. pi. 4. f. 7. 

 t 22. Clavatula brachyostoma ?, Wood, Monog. pi. 7. f. 8. 



* 23. Buccinum concinnum, (r. B. S. PL V. fig. 1. 



t 24. Chemnitzia elegantissima, Montagu ; Wood, Monog. pi. 10. f. 6. 



25. Odostomia ; like O. pHcata, Montagu ; Wood, Monog. pL 9. f. 3, but with- 

 out teeth on the inside of the inner lip. 

 t 26. Nassa reticosa, 8ow., var. costata, Wood, Monog. pi. 3. f. 10. 

 \ 27. Natica Hantoniensis ? 8ow. [as figured by Nyst, Coq. Foss. Belg. pi. 39. 

 f. 2.] (Barton and London Clays.) 



t 28. catenoides?, Wood, Monog. pi. 16. f. 10 a,h. (= N. glaucinoides, 



Bow. M. C. pi. 479. f. 4.) 

 t 29. Bulla concinna?, Wood, Monog. pi. 21. f. 6. 

 II 30. utrieula, Nyst, Coq. Foss. Belg. pi. 39. f. 9. 



31. Dentalium ; probably new. PL V. fig. 5. Resembling one figured in 



Mr. Prestwich's paper on the Thanet Sands, Quart. Jo urn. Geol. Soc. 

 vol. viii. p. 267. pi. 16. f. 12. 



32. Helix ; adhering to a broken Fusus. 



33. Ringicula. 



t 34. Valvata piscinalis, Miiller ; Wood, Monog. pi. 12. f. 3 ; in sand within a 

 Cardium Laytoni. 

 35. Limax ; shell smoother than in the common English species. PL V. fig. 3. 



Foraminifera : — 

 J 36. Cristellaria platypleura, Jones, Quart. Journ. Geol. Soc. vol. viii. p. 267. 

 pi. 16. f. 12 (=:C. Calcar, Linn.). 

 Small Bones and Teeth of Fish, in abundance §. 



Thus of 36 species, 14 are found also in the Crag of Suffolk ; 8 

 have been described from the Lower Tertiaries of England ; 2 have 

 been hitherto known only in the Tertiaries of Belgium; 4 are new; 

 and 8 are not determinable. I must here observe that my friend 

 Mr. Prestwich^, who has so long and ardently studied the Tertiary 

 formations, especially of this district, and who has seen the fossils 

 here referred to, does not concur with me in thinking that they 

 belong to a bed of Upper Tertiary (Crag) age in situ. But whatever be 

 the exact relations of these sands and clays found in the little sand- 

 pit to be so full of the fossils above mentioned, I believe that this 

 brief notice will be of service by directing attention to this interest- 

 ing point, and lead others to clear up all doubts by a still closer 

 examination of the spot. 



§ These have unfortunately been mislaid. 



^ Mr. Prestwich, who has visited the pit, informs me that he considers that 

 the section is made in a bed of sand lying just under the London Clay, he having 

 found only a few shells, and those all of Lower Tertiary species. — J. B. Jan. 

 1859. 



