TOfQirLiinD^. — coAViBX. 49 



Diplodonta sulcellata, Edwards (MS.). 



Ilnriznns anil Localities. 



Up])er Eocene. — Burton Beds. Barton. 



Middle Eocene. — BracMesham Beds. Bracklesham Bay. 



Diplodonta transversa, Edwards (MS.). 



Horizon and Locality. 

 Middle Eocene. — Bracklesham Beds. Bracklesham Bay. 



Family CHAMID^, Lamarck. 



Genus CHAMA, Liunoeus, 1766. 

 Systema Naturae, 1766, ed. 12, vol. i. p. 1137. 



Chama calcarata, Lamarck, 1806 and 1809. 



CJiu7na cakarata. 



Ann. Mus. 1806, vol. 8. p. 349 ; 1809, vol. 14. pi. xxviii. fig. 4. 



Dixon's ' Sussex,' 1850, p. 93. 



Mon. Pal. Soc. 1871, pi. xxv. figs. 1"-!% p. 172. (F, E. Edwards Cull.) 

 Horizon atid Localities. 



Middle Eocene. — Bracklesham Beds. Bracklesham Bay ; Bramshaw. 



Chama fimbriata (?), Defrance, 1817. 



Chama Jimbriata (?). 



Diet. Sci. Nat. 1817, vol. 6. Supp. p. 0-5. 



Mon. Pal. Soc. 1871, pi. xxv. fig. 8, p. 173. (F. E. Edwai-ds Coll.) 

 Horizon and Locality. 



Middle Eocene. — Bracklesham Beds. Bramshaw. 



Chama gigas, Deshayes, 1824. 



CItama gigas. 



Coq. Foss. Paris, 1824, vol. i. pi. xxxvii. flgs. 5, 6, p. 245. 



Dixon's ' Sussex,' 1850, pi. ii. fig. 20 ; pi. iii. fig. 20, p. 93. (Dixon Coll.) 



Mon. Pal. Soc. 1871, pi. xxv. figs. 2% 2'', p. 174. (F. E. Edwards Coll.) 

 Horizon and Locality. 



Middle Eocene. — Bracklesham Beds, Bracklesham Bay 



Chama gigas, var. papyracea (?), Deshayes, 1824. 



Chama papyracea. 

 Coq. Foss. Paris, 1824, vol. i. pi. xxxvii. figs. 3, 4, p. 251. 



Chama qigas, var. papyracea. 

 Mon.'Pal. Soc. 187i, pi. xxv. figs. 3", 3'', p. 174. (F. E. Edwards Coll.) 



Horizon and Localities. 



Middle Eocene. — BracMesham Beds. Bracklesham Bay ; Huntingbridge. 



E 



