318 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



Cliff-End ; and has had here a precisely similar effect in the structure 

 of the coast, the narrow undercliff upon its surface being traceable 

 to its rise on the west of Shanklin Chine. This stratum is here like- 

 wise composed of alternate beds of very dark slaty clay and greenish 

 sand ; and above it a continuous range of cliffs extends to Bonchurch 

 Cove, obviously the same as to position with those between Nos. 40 

 and 45 of Black-Gang Chine, but, here, containing a great number of 

 distinguishable fossils. 



Great interest is attached to this part of the shore from the existence, 

 in a spot which seems to correspond nearly to No. 43 of the Ather- 

 field list, of at least two new and perfectly distinct ranges of Gryphcea 

 sinuata. I regret the more that it is not in my power to give a 

 measured section of this place, as the " report'^ of Captain Ibbetson 

 and Mr. E. Forbes' s paper, which contains the description of it*, does 

 not enter into detail ; but I shall state here what I found in confirma- 

 tion of their discovery, as this striking difference in two portions of 

 the coast so near to each other, bears upon the general question of 

 the division and identification of strata in detached places. 



a. Immediately above the dark clay representing No. 40, a course of 

 white sand-rock, answering to No. 41, appears on the shore, about 

 100 paces east of the first prominence or shoulder after leaving 

 Shanklin Chine. 



b. (In ascending order) is greenish and grey sand, about 3 feet thick, 

 marked by white circular and oval spots of much lighter hue, — appa- 

 rently the sections of cylinders or tubular bodies, the white marks 

 being in some cases circular rings. With these are lighter patches 

 very like those seen upon the shore near Walpen Chine, and other 

 places above-mentioned at p. 308-9. 



c. About five feet higher, in a grey or greenish sand-rock very rich 

 in fossils, is a range of small nodular masses, including nearly fifty 

 species as follows : — 



Lonchopteris Mantellii. Terebratula Gibbsiana, Sow. 



Coniferous wood. A small gibbose species, probably 



the same as the T. subtrilobata, var. 



Cricopora?? gracilis. inflata of Leym. [may be the shell 



Cellepora (same as at Farringdon). figured as T.faba in Fitton ?] 



Brissus. Anomia convexa. 



Salenia (same as at Farringdon). radiata. 



Nucleolites lacunosus, or Olfersii (I be- laevigata. 



lieve the former). — M. Ostrea prionota. 



Gryphsea laevigata. 



Vermicularia coneava. sinuata and varieties. 



polygonata. Pecten interstriatus. 



Serpula Richardi ? . orbicularis. 



quinquecostatus. 



Terebratula pseudojurensis, Leym. Lima Cottaldina. 



(a new species near to. — M.) undata. , ,. 



ggUa Sow. — (a new species very prettily marked). 



multiformis, Roemer. semisulcata. 



* See Report of Brit. Assoc. 1844, p. 4.3. 



