PROSOBRANCHIATA. NATICID^. 243 



Ampullina Parisiensis, Orbigny, 1850. Vars. a, b, and c, 



Deshayes, 1829. 



Natica depressa. 

 Mineral Conchology, 1812, pi. 5. lower figures, non Lamarck. (Sowerby 

 Coll.). 



Katica mutabilis, vars. a, b, c. 

 Coq. Foss. Paris, 1829, vol. ii. pL xxi. figs. 11, 12, p. 175, non Brander. 



Natica Pnristensts. 

 Prod. Pal. Strat. 1850, vol. 2. p. 344. 

 Desc. Anim. sans Vert. 1804, vol. iii. p. 6G. 



Ampullina Parisiensis. 



Ann. Soc. R. Mai. Belpque, 1888, vol. xxiii. p. 171. 



Horizons and Localities. 



Oligficene. — Headon Beds. Headon Hill ; Mead End ; Colwell Bay ; 



Hordwell. 

 Upper Eocene. — Barton Beds. Barton. 

 Middle Eocene. — Bracklesltam Beds. Bracklesbam Bay; Bramshaw; 



Brook ; Stubbington. 

 Lower Eocene. — London Clay (alluvium). Woodbridge. 



Ampullina patiila, Lamarck, 1804. 



Helix mutabilis, var. 



Brander's ' Foss. Ilant.' 1766, pi. iv. fig. 67, p. 28. (Brander CoU.) 



Ampullaria patida. 

 Ann. Mus. 1804, vol. 6. p. 32. 



Mineral Conchology, 1821, pi. 284. middle figures. (Sowerby Coll.) 

 Coq. Foss. Paris, 1829, vol. ii. pi. xxi. %s. 3, 4, p. 169. 



Olobulus patttlus. 

 Dixon's ' Sussex,' 1850, pL xiv. fig. 10, pp. 98, 118, 227. (Dixon Coll.) 



Natica patula. 

 Desc. Anim. sans Vert. 1864, vol. iii. p. 62. 



Ampullina patula. 



Ann. Soc. R. Mai. Belgique, 1888, vol. xxiii. p. 170. 



Horizotis and Localities. 



Upper Eocene. — Barton Beds. Barton. 



Middle Jiocene.—Brackksham Beds. Brook ; Bramshaw. 



Lower Eocene. — London Clay, Bognor. 



Ampullina ponderosa, Deshayes, 1829. 



Ampullaria ponderosa. 



Coq. Foss. Paris, 1829, vol. ii. pi. xvii. figs. 13, 14, p. 140. 



Katica ponderosa. 



Desc. Anim. sans Vert. 1864, vol. iii. p. 72. 



Crommium ponderosa. 



Ann. Soc. R. Mai. Belgique, 1888, vol. xxiii. p. 174. 

 Horizon and Localities. 

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

 Brook. 



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