the Foraminifera of the Crag. 65 



minifera being in those days regarded generally as microscopic 

 Nautili, &c. 



Mr. Wood's original collection has been enlarged by the accu- 

 mulation of specimens since 1835 ; but very few additional 

 species of Foraminifera have occurred to him in his continued 

 examination of the Crag of Sutton and elsewhere. Many of the 

 forms met with by Mr. Wood have also been found by us in 

 miscellaneous hand-specimens of Crag; and we have also some 

 additional forms from these sources. We have taken about 

 twenty forms (mostly common) from hand-specimens of Crag in 

 which the Cardita senilis abounds, and nearly as many (mostly 

 the same) from Crag with Cyprina Islandica : the former {Car- 

 dita) is very abundant at Sudbourne, Mr. Wood informs us, and 

 is not wanting at Ramsholt; the latter {Cyprina) prevails at 

 both places in company with the Cardita. Some half a dozen 

 forms we met with in a piece of Crag with Ostrea ; but these 

 are not uncommon forms. Specimens of Bryozoan Crag have 

 afforded a dozen forms, mostly common in other varieties of the 

 Crag. Specimens of Crag from Sudbourne, Aldborough, and 

 Gedgrave have also yielded us a few Foraminifera, but, as in our 

 other gatherings, with a paucity of individuals and poverty of 

 size and variety that are strongly contrasted with the conditions 

 under which Mr. Wood found his numerous and large specimens 

 in the Crag of Sutton. On this subject Mr. Wood has remarked, 

 in letters to us dated March 11th and August 5th, 1863 : — " It 

 is pretty nearly as you suspect : those fine specimens were from 

 a special bed, which was at one time particularly rich in those 

 remains ; and nearly the whole of what I then considered my 

 fifty species were obtained from the Crag at one locality in the 

 parish of Sutton. This spot, which formerly yielded to my ex- 

 amination specimens by hundreds (indeed, I may say by thou- 

 sands), now scarcely supplies me with any. As this locality 

 fails to furnish me with any but the commoner kinds of shells 

 and Foraminifera, I imagine that the rich community must have 

 nestled in a protected nook, out of the reach of the moving 

 waters, or in some quiet place under specially favourable condi- 

 tions, and that the excavations in the deposit, as they have been 

 extended westward, have passed beyond this particular habitat. 

 The bed at Sutton seems to have been a bank something like 

 the ' Turbot-bank,' about five miles south of Lame. The Crag 

 at Sutton is somewhat isolated now, and separated from that at 

 Ramsholt probably by denudation. At the latter place the 

 White or Lowest (' Coralline ') Crag is overlain by the Red Crag; 

 but at Sutton it has been excavated by denudation, and the Red 

 Crag abuts against it, as has been pointed out by Lyell (Mag. 

 Nat. Hist, new ser. vol. iii. 1839, p. 314). Most of my speci- 



Ann. ^ May. N. Hist. Ser. 3. Vol. xiii. 5 



