﻿Fig. 

 1, 2. 



3. 



4, 4 a. 

 5. 



ha. 



6, 6 a. 

 7. 



PLATE XXXV. 



Trigonia Keepingi, Lyc. Middle Neocomian Formation, Tealby, Lincolnshire. 



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

 carinata, Ag. Young specimen. Upper Greensand, Isle of Wight, 

 Ventnor. (Page 179.) My collection. 

 ,, Young specimen. Neocomian Formation, Atherfield, Isle of 

 Wight. My collection. 

 Specimen of more fully developed growth. Atherfield. 

 Anterior side, exhibiting the byssal aperture. Atherfield, Isle 



of Wight. My collection. 

 Atherfield, Isle of Wight. My collection. 

 formosa var. lata, Lyc. Inf. Ool., Bradford Abbas. See also PI. 



XXIX, figs. 11,12. (Pages 35, 202). My collection. 

 Brodiei, Lyc. Inf. Ool., Northampton Sands, Milcombe Hill, Oxon. 

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

 My collection. 



