PLATE X. 



CucuLLyEA {continued). 



FIGS. 



1—3. C. Cornueliana (d'Orb.). Crackers, Atherfield. (P. 50.) 



1. Leckenby Collection, Woodwardian Museum, a, right valve; b, dorsal outline; 

 c, ornamentation X 4. 



2. Leckenby Collection, Woodwardian Museum, a, right valve ; b, dorsal. 



3. Woodwardian Museum. Hinge x 2. 



4—7. C. Fittoni (Pict. and Camp.). Crackers, Atherfield. (P. 52.) 



4. Leckenby Collection, Woodwardian Museum, a, outline of left valve ; b, same 



X 1| ; c, posterior of same X 1| ; d, dorsal of same x 1|. 



5. Woodwardian Museum. Hinge and area X 2. 



6. Leckenby Collection. Left valve. 



7. Wiltshire Collection. Right valve. 



8 — 10. C. vagans, Keeping. Lower Greensand (Black-grit nodule), Upware. 

 Woodwardian Museum. (P. 52.) 



8. Drawn from a wax mould of an external cast. Eight valve. 



9. Natural internal mould. Uiglit valve. Figured by Keeping. 



10. Ornamentation x '3. 



11 — 14. C. (Dicranoclonta) donningtonensis, Keeping. Claxby Ironstone (zone 

 of Belemnites lateralis), Benniworth Haven. Woodwardian 

 Museum. (P. 54.) 



11. a, left valve ; h, dorsal ; c, interior. 

 1L\ Hinge of left valve. 



13. Ornamentation X 3. 



14. Eight valve. 



