PLATE IX. 



Fig. 



1. Trigonia muricafa, Goldf. Portland Limestone, Wilts. (Page 50.) The test has 



disappeared. 



2. ,, incurva, Benett (a variety). Kimmevidge Clay, Dorsetshire. (Page 42.) 



It is somewhat flattened from vertical pressure. 



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



4. ,, ,, Small specimen, Kimmeridge Clay, Wotton Basset, Wilts. 



5. ,, ,, Portland Oolite, Isle of Portland. 



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



