PROSOBRANCHIATA. MBLANIIBiB. 201 



Genus MELANATRIA, T. E. Bowdicli, 1822. 

 Elements Conchology, 1822, pi. vi. fig. 20, p. 28. 



Melanatria Castellini, A. Brongniart, 1823, var. 



Cerithimn Castellini. 

 Mem. Terr. S^d. Vicentin, 1823, pi. iii. fig. 20, p. 69. 



Cerithimn Geslini, 

 Coq. Foss. Paris, 18.33, pi. xliii. figs. 17, 18, p. 367. 



MelaiKiiria vulcanicus. 



Ann. Soc. R. Mai. Belgique, 1888, vol. xxiii. p. 280. 



Horizon and Localities. 

 Upper Eocene. — Barton Beds. Barton ; High Cliff. 



Melanatria ignotom, Edwards (MS.). 



Horizon and Locality. 

 Middle Eocene. — Bracklesham Beds. Huntingbridge. 



Melanatria inqtdnata, Befrance, 1823. 



Strata Ident. 1816, pi. 2. fig. 7. (WUliam Smith Coll.) 



Cerithimn melanioides. 

 Mineral Conchology, 1816, pi. 147. figs, 6, 7, nan Lamarck. (Sowerby 

 CoU.) 



Potamides melanioides. 

 Mineral Conchology, 1822, pi. 339. fig. 3. (Sowerby Coll.) 



Cerithium melanoides. 

 Foss. South Downs, 1822, pi. xvii. fig. .3, p. 263. (Sowerby Coll.) 



Melania inquinata. 

 Diet. Sc. Nat. 1823, vol. 29. p. 469. 



Cerithium gracile. 



Quart. Journ. Geol. Soc. 1854, vol. x. pi. ii. fig. 19, p. 159, non Lamarcli:. 

 Horizon and Localities. 



Lower Eocene. — Woolwich Beds. Newhaven; Charlton; Woolwich; Dul- 

 wich ; Plumstead Heath ; Upnor ; Beckenham ; Chiselhnrst. 



Genus PAUNUS, Monfcfort, 1810. 

 Conch. Syst. 1810, vol. 2. p. 427. 



Pirena, Lamarck, 1812 and 1822. 



Extrait Cours Zool. 1812, p. 116 (list name) ; 



Hist. Nat. Anim. sans Vert. 1822, vol. 6. part 2, p. 169. 



Faunus cavatus, Edwards (MS.). 



Horizon and Locality. 

 Oligocene. — Headon Beds. Mead End. 



