FOSSILS OF THE CORNBRASH. 143 



become the common property of geologists, without the intervention of 

 any publication by himself, which might remind those who profit by his 

 labours of the praise that is due to the disinterested liberality of his 

 communications. 



Of sixty species enumerated above, one-half the number occur like- 

 wise in other strata on the coast of Yorkshire ; twenty-six of these have 

 been seen in the superior strata of the coralline oolite formation ; twelve 

 exist in inferior rocks which belong the Bath oolitic series, and at least 

 ei^ht are diffused alike through the strata above and below it. These 

 are dicotyledonous wood, my a literata, my a calceiformis, trigonia cla. 

 vellata, modiola, pecten lens, perna quadrata, turritella muricata. Of 

 the thirty species which remain, future researches may prove a con- 

 siderable portion to be characteristic of this remarkable rock, but at 

 present I shall content myself with pointing out those which my own 

 experience in Yorkshire has taught me to confide in, and- which, there- 

 fore, it may be hoped, will not mislead others. These are the ammonites 

 generally, but ammonites calloviensis, and a. Krenigi, especially, (for that 

 which Mr. Sowerby figures from the lias in connexion with the Kel- 

 loways fossil, appears to me quite distinct,) and the small variety of 

 gryphaea dilatata. These are the very fossils which Mr. Smith so long 

 ago pointed out as proper to identify this rock in Wiltshire, and it is 

 worth remarking, that every species figured on his plate as characteristic 

 of the stratum in the southern counties, may, with suitable precaution, be 

 employed for the like purpose in Yorkshire. This rock seems unknown 

 beyond the British islands, and its fossils are not, I believe, described by 

 any foreign geologist. 



FOSSILS OF THE CORNBRASH. 



ZOOPHYTA AND RADIAKIA. 



Cellaria Smithii ... ... PL VII. fig. 8. Scarborough, attached to 



It seems to belong to the genus hippothoa, Lamx. cardium citrinoYdeum. 



see his Expos. Meth. t. kxx. fig. 16. 



