﻿PLATE XXXI. 



Fig. 

 ], 1 r/, 2, 3, 10. Trif/oii'in vwnilifera, Ag. Kimraeridge Clay, Weymouth. (Page 165.) 



jMy collection. 

 2 a. „ „ Portion of the surface magnitied. 



4, 5, 7, S. ,, liemisphcErica, Lye. Inf. Oolite, Santon Bridge, near 



Appleby. (Page 174.) My collection. 

 6. „ „ Specimen with the costae fewer and larger. 



Inf. Oolite, Santon Bridge. My collection. 

 9, 9 a. ,, C/rlleni, Lye. Inf. Oolite, Millepore bed, Clougiiton. (Page 



173.) My collection. 



