﻿SUPPLEMENT, PLATE IV. 



CRETACEOUS. 



Fig. 



1 — 4. Terebratula depressa, Lamarck. I, 2. Lower Greensand, Upware, Cam- 

 bridgeshire. 1. Typical form of species. 2. Merging 

 into var. uniplicata. Woodwardian Museum, Cam- 

 bridge. 3. Lower Greensand (Middle Neocomian), 

 Acre House, Lincolnshire. Woodwardian Museum, 

 Cambridge. 4. Lower Greensand, Isle of Wight. 

 (P. 40.) 



5. „ „ var. uniplicata, Walker. Lower Greensand, Upware. 



Collection of Mr. Walker. 



6, 7. „ „ var. cyrta, Walker. Lower Greensand, Upware. 



8 — 10. „ „ var. Cantabrigensis, Walker. Lower Greensand, Up- 



ware. 



11 — 13. „ Moutoniana, D'Orb. Lower Greensand, Upware. 13. Loop. 



(P. 42.) 



