1852.] 



LYELL — BELGIAN TERTIARY FORMATIONS. 



301 



Table VII. (continued). 



Names of species. 

 17. Scalaria, new species. 



18. Actaeon (Tornatella) 

 simulatus, Sow. 



19. Natica glaucinoides, 



Sow. 



20. Cancellaria evulsa, 



Brander. 



21. Fusiis elongatus, A^i/sif . 



22. — multisulcatus,IV3/5^. 



F. Uneatus, Sow. ? 



23. — erraticus, De Kon. 



24. — Deshayesii,DeXow. 



25. — Koninekii, Nyst. 



26. — Waelii, Nyst. 



F. regularisy De Kon . 



27. — Staquiezii, Nyst. 



F. scalaroides, De 

 Koninck. 



28. Pleurotoma Morrenii, 



De Kon. 



29. — crenata, Nyst. 



P. subdenticulata, 

 Goldf. 



30. — Selysii, De Kon. 



31. — Koninckii, Nyst. 



32. — Waterkeynii, Nyst. 



33. — flexuosa?, Goldf. 

 P. acuminata, Nyst. 



34. — Bosquetiij Nyst. 



35. Murex Pauwelsii, De 



Koninck. 



36. — Deshayesii, Nyst. 



VOL. VIII. PART I. 



Observations. 



I met with this shell at Rupelmonde, and it 

 will be figured and described in M. Nyst's 

 Supplement. It comes very near to a Lon- 

 don Clay species from Potter's Bar, near 

 London, in Mr. Edwards's collection. It 

 diflFersfrom Scalaria costulata, Nyst, pi. 38, 

 fig. 6, in having nearly twice as many ribs 

 (eighteen to twenty) in each whorl, in being 

 larger, and having the whorls more symme- 

 trically curved. 



Agrees with some varieties from Barton. It 

 is smoother, and has the furrows less broad, 

 than most of the individuals from the En- 

 glish strata. 



Identical with a Highgate or London Clay 

 fossil; compared by Mr. Morris and Ed- 

 wards. 



The difference of this shell from that of Bar- 

 ton is too slight to constitute more than a 

 variety. It agrees, says Mr. Morris, more 

 closely with a Bracklesham form. 



Comes very near to a London Clay shell, but 

 different. 



Very close to F. Uneatus, a Highgate shell, 

 but the canal is straighter. — J. Morris. 



Allied to a Highgate shell, but different. 



M. Nyst remarks that this species is different 

 from F. regularis, Sow., with which it was 

 formerly supposed to agree. 



This small species, says M. Nyst, might be 

 confounded with F. aciculatus, Lamk., but 

 is different. 



Allied to an undescribed species from High- 

 gate. 



Near to, if not a variety of, an unnamed Bar- 

 ton species. 



Identified by Messrs. Morris and Edwards with 



a shell from Highgate. 

 Very near to a London Clay shell from Potter's 



Bar, in Mr. Edwards's cabinet. 

 Nearly allied to a Highgate shell. 

 M. Beyi-ich refers this species to P.flexuosa, 



Goldf. It is not P. acuminata, Sow. 

 This species has been supposed identical with 



P. rostrata, Brander, sp., but M. Nyst is 



now aware that it differs from it. 



Near to M. cristatus, Sow., a London Clay 

 shell. 



X 



