106 GREY CHALK MARL. 



the alcyonitic flints figu»ed by Mr. Parkinson, Org. Remains, vol. ii. 

 tab. ix. figs. 4, 6, 12. 



This fossil may be referred to the genus alcyonium, with less hesita- 

 tion than many of the mineralized zoophytes, to which that name is 

 usually apphed. 



Localities. Hamsey, South Bourne, near Beachy Head. 



6. A cyUndrical ramose zoophyte, about 0*4 inch in diameter, branches 

 short, distinct, decussatedly opposite * ; terminations obtuse, with a central 

 depression. 



The only specimen hitherto discovered possesses the structure here 

 described, but more perfect examples are necessary to determine its cha- 

 racters. It approaches in some respects to Alcyonium mammillosum, and 

 A. ocellatum of Ellis f. 



Locahties. A marl bank near Mailing Gate. 



7. Millepora. ? Tab. xv. fig. 10. 



A ramose, subcyhndrical zoophyte ; branches distinct, opposite ; ter- 

 minations truncated, bilobed, with rounded entire margins, the centres 

 oblong and depressed ; cells irregularly rhomboidal, arranged in parallel 

 rows. 



The cells are but imperfectly shown, and it is scarcely possible to de- 

 termine their original form with any degree of accuracy. 



Locahty. Marl bank at Stoneham ; near the Rev. J. Constable's, 

 Middleham. 



8. Millepora Gilberti. 



Fohaceous, flexuous, terminating in projections with oblong openings? 

 each having an spinous obtuse process : surface covered with minute 

 circular pores, irregularly disposed. 



A very elegant milleporite, composed of crystallized carbonate of lime ; 

 not unfrequent in the locahties hereafter mentioned. The short spinous 



* i. e. an-anged crosswise, in four rows. 

 ■f Ellis' Zoophytes, one volume, 4to. 1786, tab. i. figs. 4- and .5. 



