86 LAMELLIBRANCHIATA. 



Family CORBULID^, Fleming. 



Genus SPHENIA, Turton, 1822. 

 Conch. Insul. Brit. 1822, p. 36. 



Sphenia angulata, Deshayes, 1857. 



Sphenia angulata. 4 



Desc. Anim. sans Vert. 1857, vol. i. pi x. figs. 21-23, p. 197. 



Horizon and Locality. 



Upper Eocene. — Barton Beds. Barton. 



Genua CORBULA, Bruguiere, 1791. 

 Tab. Encycl. M6th. vol 2. pi. 230. 



Corbula anatina (?), Lamarck, 1806. 



Corhula anatina. 

 Ann. Mus. 1806, vol. 8. p. 468. 



Horizons and Localities. 



Upper Eocene. — Barton Beds. Bajrton. 



Middle Eocene. — Braeklesham Beds. Whitecliff Bay. 



Corbiaa Arnouldii, Nyst, 1843. 



Corhula Arnouldii. 

 M(Sm. Cour. (4to), 1843, vol. xvii. p. 67. 

 Quart. Journ. Geol. Soc. 1854, vol. x. pi. ii. fig. 3, p. 155. 



Horizons and Localities. 

 Lower Eocene. — London Clay. Portsmouth. — Woolwich Beds. Bickley. 



Corbula Bartonensis, Edwards (MS.). 



Horizon and Locality. 



Upper Eocene. — Barton Beds. Barton. 



Corbula cardiiformis, Edwards (MS.). 



Horizon and Locality. 



Lower Eocene. — London Clay. Ilighgate. 



Corbula costata, J. de C. Sowerby, 1850. 



Corbula revoluta. 

 Mineral Conchology, 1818, pi. 209. figs. 8-13. (Sowerby Coll.) 



Corbula costata. 

 Dixon's ' Sussex,' 1850, p. 165. 



Horizons and Localities. 



Upper Eocene. — Barton Beds. Barton. 



Middle Eocene. — Braeklesham Beds. Brook; Huntingbridge; Braeklesham 

 Bay. 



