192 GASTEROPODA. 



Lovenella prcelont/a. 



Ann. Soc. R. Mai. Belgique, 1889, vol. xxiv. p. 49. 



Horizons and Localities. 



Upper Eocene. — Barton Beds. High Cliff. 



Middle Eocene.— Bracklesham Beds. Brackleshaui Bay ; Brook. 



Lower Eocene.— London Clay. Finchley ; Clarendon. 



Lovenella pulchra, Edwards (MS.). 



Horizon and Locality. 

 Oligoceue. — Headon Beds. Headon. 



Iiovenella, sp. 1. 



Horizon and Locality. 



Oligocene.— Hempstead Beds. Hempstead. 



Lovenella, sp. 2. 



Horizon and Locality. 

 Upper Eocene. — Barton Beds. Barton. 



Ijovenella, sp. 3. 



Horizon and Locality. 

 Lower Eocene. — London Clay. Finchley. 



Genus TRIPORIS, Deshayes, 1833. 

 Coq. Foss. Paris, 1833, vol. ii. p. 429. 



Tiiforis altinipestris, Edwards (MS.). 



Horizon and Locality. 



Upper Eocene.— -Bartora Beds. High Cliff. 



Triforis ambigua, Deshayes, 1865. 



Triforis aynbiyua. 

 Dese. Anim. sans Vert. 1865, vol. iii. pi. l.xxxii. tigs. 16-17, p. 240. 



Horizon and Locality. 



Middle Eocene. — Bracklesham Beds. Himtingbridge. 



Genus POTABUDES, Brougniart, 1810. 



Ann. Mu8. 1810, vol. 15. pi. 22. fig. 3, p. 307. 



Tympanotomus (Klein, 1753), Schumacher, 1817. 



OstracologiciB, 1753, pi. ii. figs. 38-40, p. 30; 



Nouv. Syst. Hah. Test. 1817, p. 211. 



Potamides acuminatus, Edwards (MS.) . 



Horizon and Locality. 

 Oligocene. — Hemjistead Beds. Hempstead. 



