ON THE RED CHALK OF ENGLAND. 17 



A o — 



o c £ _• 



° * *2 



(d ui — hrt 



cat e £ ^ 



a 



Pecten Beaveri . x 



Sow. M. C. tab. 158, page 131. 



(In the collection of Mr. Rose.) 



Spondylus latus x x 



Sow. M. C. tab. 80, rig. 2, page 184. 



(In the collection of Mr. Rose and Author.) 



Ammonites alternates 1 * 



Woodward, Geol. Norfolk, tab. 6, fig. 23. 



Ammonites complanatus x 



Sow. M. C. tab. 567, fig. 1. 



(In the collection of Mr. Rose.) 



A. rostratus x 



Sow. M. C. tab. 173, page 163. 



(In the collection of Mr. Rose.) 



A. serratus, Parkinson x 



Sow. M. C. tab. 308, page 3. 



(In the collection of Mr. Rose.) 



Belemnites attenuates. PL IV. fig. 5 x 



Sow. M. C. tab. 598, fig. 2, page 176. 



(In the collection of Author.) 



B. minimus. PL IV. fig. 8 x x x 



Sow. M. C. tab. 598, rig. 1, page 175. 



(In the collections of Messrs. Bowerbank, Bean, Rose, 

 Wetherell, and Author.) 



Belemnites Listeri. PL IV. fig- 6 x 



Phil. Geol. York. tab. 1, fig. 18- 



(In the collection of Author.) 



B. ultimus, D'Orb. PL IV. fig. 7 x 



Sharpe, Chalk Moll. tab. 1, fig. 17. 



(In the collections of Mr. Bean and Author.) 



Nautilus simplex. PL I. fig. 3 . . '. x a 



Sow. M. C. tab. 122, page 122. 

 (In the collections of Mr. Rose, Mr. Wetherell, and Author.) 



Otodus appendiculatus 



Ag.'Vol. iii., page 270, tab 32. 



(In the collection of Mr. Wetherell.) 



Tooth of Saurian x 



(In the collection of Mr. Bean.) 



Vertebra of Polyptychodon (?) x 



(In the collection of Author.) 



Siphonia pyriformis is probably the head of Spongia paradoxica. In the cabinet 

 of Mr. Rose is a mass of the latter, to which a head similar to the one figured is 

 attached. 



Bourgueticrinus rugosus. The diameter of the specimen figured is § of an inch, 

 the depth of each plate The surface of attachment is covered with very fine 

 mamilke, in rays of seven in number ; a smaller specimen hi possession of the 

 author measures f of an inch in diameter and £ in depth. 



The serpula represented in Plate III. fig. 3 varies in its irregular growth from 

 the specimens figured on the same plate. This character perhaps can scarcely 

 be regarded as a specific difference ; both V. elongata and the serpula under con- 



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