﻿PLATE XXXV. 



Fig. 

 1, 2. Tri(joiiiu Keepingi, Lye. Middle Neocomian Formation, Tealby, Lincolnshire. 



(Page 196.) Coll. Woodwardian Museum, Cambridge. 



3. ,, carinafa, Ag. Young specimen. Upper Greensand, Isle of Wight, 



Ventnor. (Page 179.) My collection. 



4. 4«, ,, „ Young specimen. Neocomian Pormation, Atherfield, Isle of 



Wight. My collection. 



5. ,, ,, Specimen of more fully developed growth. Atherfield. 



5 a. „ ,, Anterior side, exhibiting the byssal aperture. Atherfield, Isle 



of Wight. My collection. 



6. 6 a. „ „ Atherfield, Isle of Wight. My collection. 



7. ,, fonnosa var. lata. Lye. Inf. Ool., Bradford Abbas. See also PI. 



XXIX, figs. 1 1, 1 .2. (Pages 35, 202). My collection. 



8. ,, Brodiei, Lye. Inf. Ool., Northampton Sands, Milcombe Hill, Oxon. 



(Page 195.) Coll. Rev. P. B. Brodie. 



9. ,, „ My collection. 



