TELLINID^. — SCROBIClJLARIIDiB. 77 



Gari rudis, Lamarck, 1806 and 1808. 



Tellina rudis. 

 Ann. Mus. 1806, vol. 7. p. 2-35; 1808, vol. 12. pi. xxiii. fig. 1. 



Psammobia soUda. 



Mineral Conchology, pi. 342. (Sowerby OoU.) 



Horizons and Localities. 



Oligoceue.—Headuti Beds. ColwellBay; Hordwell; Headon Hill. 

 Upper Eocene. — Barton Beds. Barton. 



Genus PSAMMOT.ff:A, Lamarck, 1818. 

 Hist. Nat. Anim. sans Vert. 1818, vol. 5. p. 616. 



Psammotsea sestuarina, Edwards (MS.). 



Horizon and Localities. 

 Oligocene. — Headon Beds. Colwell Bay ; HordweU ; Roydon. 



Psammotsea compressa, J. de C. Sowerby, 1824. 



Sanguinolaria compressa. 



Mineral Conchology, 1821, pi. 462. (Sowerby Coll.) 



Horizons and Localities. 



Oligocene. — Headon Beds. Hordwell. 



Upper Eocene. — Barton Beds. Barton; High Cliff; Alum Bay (no. 29 



Bed). 

 Middle Eocene. — Bracklesham Beds. Bracklesham Bay. 



Family SCROBICULARIID^, Stoliczka. 



Genus SYNDOSMYA, Kecluz, 1843. 

 Revue Zoologique, 1843, pp. 292, 359. 



Syndosmya Colvellensis, Edwards (MS.). 



Horizon and Locality. 

 0%ocene. — Headon Beds. Colwell Bay. 



Syndosmya ctineata, Edwards (MS.). 



Horizon and Localities. 

 Lower Eocene. — London Clay. Clarendon ; Alum Bay (no. 4 Bed). 



Syndosmya delicatiUa, Edwards (MS.). 



Horizon and Locality. 



Upper Eocene. — Barton Beds. Barton. 



Syndosmya fragilissima, Edwards (MS.). 



Horizon and Locality. 



Upper Eocene. — Barton Beds. High Cliff. 



Syndosmya glabra, Edwards (MS.). 



Horizon and Locality. 



Upper Eocene. — liaHon Beds. High Cliff. 



