tJNIVALVE SHELLS. 463 



Cordium, Cockle. These are found in abun- 

 dance at Deepdale, about one mile and a half to 

 the eastward of Kirkby Moorside and at Cockshot- 

 hill, about a mile to the north-east of it. 



Tellina, may be found in the same situations, as 

 well as the Anomina and the Venus, which is a 

 beautiful little shell. 



The Chama and Area are not so plentiful in this 

 district ; but a, few specimens of them have beea 

 discovered. 



Pecten, Scollop. No shells are much more com- 

 mon in this neighbourhood, then those of this 

 genus. 



Ostrea, Oyster. Various specimens of this des- 

 cription, present themselves to the geologist, in 

 his investigation of the rocks before named. 



UNIVALVE SHELLS. 



Buccinum, Welk. Specimens of these are scarce. 



Turbo, Wreath or Whirl. Under this genus 

 may be placed several shells found in the oolite^ 

 some of which belong to the new genus. Melania. 

 Some specimens are long and large, and are what 

 some authors call screw shells ; they form a 

 considerable portion of some of our fossil 

 stone. Deepdale is tire most prolific place for them, 

 as well for others of almost every description, 

 which are peculiar to limestone districts. 



Trochus, Topshell. Specimens of this genus 

 are rarely to be found here. 



Nerita, Nerite. A shell of the whirl kind, as 

 well as the dentalium or toothshell, and serpula, 

 afford many specimens. 



MULTILOCULAR SHELLS. 



r \ 



Which includes ammonites, nautilites dhd Be- 

 lemnites, are included under this denomination, iia 

 all of which the shell is divided internally into nu- 

 merous chambers. The nautilus is seldom if ever 

 seen. 



