﻿PLATE XXVII. 



Fro. 



I, I a, 1 5, 2 Trigonia Mheridgei, Lye. Neocomian, Perna bed, Isle of Wight. 



(Page 127.) My cabinet, 



3, 3 a. „ „ Young example from the same formation and 



locality. My cabinet. 



4, 5, 5 a, 5 b. „ scabricola, Lyc. Greensand, Blackdown. (Page 130.) 



My cabinet. 



