﻿PLATE IX. 



Fro. 



1. Triffoma muricata, GoW. Portland Limestone, Wilts. (Page 50.) The test has 



disappeared . 



2. „ incurva, Bcnett (a variety). Kimmeridge Clay, Dorsetshire. (Page 42.) 



It is somewhat flattened iVoui vertical pressure. 



3. „ „ Internal mould, Portland Oolite, Swindon. (Page 42.) 



4. „ „ Small specimen, Kinnueridge Clay, Wotton Basset, Wilts. 



5. „ „ Portland Oolite, Isle of Portland. 



6. „ Portland Oolite, Crookwood, near Devizes, Wilts. 



