PLATE X. 
CucuLLaa (continued). 
FIGS. 
1—3. C. Cornueliana (VOrb.). Crackers, Atherfield. (P. 50.) 
1. Leckenby Collection, Woodwardian Museum. a, right valve; }, dorsal outline ; 
c, ornamentation X 4. 
2. Leckenby Collection, Woodwardian Museum. a, right valve ; 0, 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; 6, same 
x 1}; ¢, posterior of same x 13; d, dorsal of same x 13. 
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. Right valve. 
9, Natural internal mould. Right valve. Figured by Keeping. 
10. Ornamentation x 38. 
11—14. ©. (Dicranodonta) donningtonensis, Keeping. Claxby Ironstone (zone 
of Belemnites lateralis), Benniworth Haven. Woodwardian 
Museum. (P. 54.) 
11. a, left valve ; 6, dorsal; ¢, interior. 
12, Hinge of left valve. 
13. Ornamentation xX 3. 
14. Right valve. 
