Mr. S. V. Wood's Catalogue of Shells from the Crag. 249 



DESCRIPTION. 



Coralline. 



Red. 



Mam. 



CONCHIFERA. 



Astarte obliquata, Min.Con. t. 179. 



f. 3 



bipartita.Mw. Con. t. 521 . f. 3. 



nitida, Min. Con. t. 521. f. 2. 



nitidula, n. s 



mutabile, n. s 



s\i\ca.ta,Flem.Brit. Ani.])A39. 



Venus sulcata, Mont. T. B 



p. 131. 

 compressa, Flem. Brit. Ani. 



p. 440 



pisiformis, n. s 



gracilis, Goldf. Petrefact. t. 



135. f. 4 



Ramsholt. 

 Ramsholt. 

 Sutton .... 

 Ramsholt. 



parva, n. s 



parvula, n. s 



pygmaea, Goldf. Pet. t. 135, 



f. 5,6 



subtrigona, n. s , 



Goodallia ? crenatula, n. s , 



? pygmaea*, n. s , 



Cyrena trigonula, Wood 



Cytherea Chione, Turt. Brit. Biv. 



t. 8. f. 11 



Venus Chione, Linn. Syst. Nat 



p. 1131. 



filosa, n. s 



lenticula, n. s , 



Cyprina maxima % 



Sutton 



Ramsholt.. 



Sutton. 



Sutton. 



Sutton. 

 Sutton. 

 Sutton. 

 Sutton. 



Gedgravef. 

 nearOrford. 



Ramsholt. 



Sutton. 



Sutton. 

 Sutton. 

 Sutton. 

 Sutton, 



Sutton 

 Sutton 



Sutton. 



Thorpe. 

 Bramerton. 



Sutton ... 

 Sutton ... 

 Ramsholt... 



Walton Naze. 

 Walton Naze. 

 Bawdsey , 



Southwold. 



* The two shells placed in this genus by Dr. Turton will, I think, be found 

 to belong to the genus Astarte and the minutissima, probably the immature shell 

 of the triangularis. 



f This is stated, upon the authority of Capt. Alexander, to have been found in 

 the coralline crag, but from the appearance of the locality I think there is at 

 present a doubt of its belonging to that formation : I found at the same place 

 Cyclostoma elegans, and Pupa marginata. Capt. A. kindly sent me a specimen, 

 which, by comparison, appears identical with that which is found so abundantly 

 in the lacustrine deposit at Stutton, on the banks of the river Stour, seven miles 

 south of Ipswich : whether this be the same as the common species from the Nile, 

 Cyrena consobrina, I will leave others to determine ; but there is one character in 

 the fossil in which it appears to differ from the recent, although amongst some 

 hundreds of specimens that I have procured, there is of course a great variety ; 

 the posterior side is always more angular than that of the recent, which in all 

 those that I have seen is truncated. Our shell appears to agree with Cyrena 

 Gemmellarii, Phil. Enum. Moll. Siciliae, t. 4. f. 3. 



X The umbo of this, from the coralline crag, is a little more produced, and ap- 

 pears to have been rather a thicker shell than the recent, which is the only dif- 

 ference that I can detect, while the specimens from the red crag preserve a 

 sort of intermediate character in that respect. 



