202 GASTEEOPODA. 



Faunus rigidus, Solander, 1766. 



Bticcvixu^n vioidttftt 



Brander's'' Foss. Hant.' 1766, pi. iii. fig. 43, p. 23. (Brander Coll.) 



Potamides rigidtis. 



Mineral Conchology, 1822, pi. 3.38. (Sowerby Coll.) 



Horizon and Localities. 

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



Genus COPTOSTYLUS, Sandberger, 1870 and 1872. 

 Land- u. Sussw.-Conch. 1870 & 1872, pi. x. fig. 10 (1870), p. 202 (1872). 



Coptostylus brevis, J. do C. Sowerby, 1826. 



Melanopsis hrevis. 



Mineral Conchology, 1826, pi. 523. fig. 2. (Sowerby Coll.) 



Forbes's ' Isle of Wight,' Mem. Gaol. Surv. 1856, pi. vi. fig. 10, p. 156. 



Horizons and Localities. 



Oligocene. — Hempstead Bed^. Hempstead. — Hcadon Beds. Ilordwell ; 

 Headon ; Mead End. 



Coptostylus globosus, Edwards (MB.). 



Horizon and Locality. 

 Upper Eocene. — Barton Beds. Barton. 



Genus MELANOPSIS, Ferussac, 1807. 

 Essai Metli. Conch, nouv. edit. 1807, p. 70. 



Melanopsis buccinoidea, Ferussac, 1807. 



Melanopsis buccinoidea. 



Essai Meth. Conch. 1807, ed. 2, p. 70, non Melanta buccinoidea, Olivier, = 



Buecinum prcerosum, Linn. 

 Me'm. Geol. 1814, pp. 54, 04. 

 M(Sm. Soc. Hist. Nat. Taris, 1823, vol. i. part 1, pi. vii. p. 19. 



Melanopsis ftmformis. 



Mineral Conchology, 1822, pi. 332. figs. 3-6. (Sowerby CoU.). 

 Horizons and Localities. 



Upper Eocene. — Barton Beds. High CliflT; Barton. (Var.) 



Middle Eocene. — Bracklesham Beds, llinton. ( Var.) 



Lower Eocene. — Wooltvich Beds. New Charlton ; Woolwich ; New Cross ; 

 BeCkenham. 



Melanopsis buccinulum (?), Deshayes, 1862. 



Melanopsis buccinulum. 

 De.sc. Anim. sans Vert. 1862, vol. ii. pi. xxxi. figs. 11-13, p. 469. 



Horizon and Locality. 

 Lower Eocene. — Woohoich Beds. Peckham. 



Melanopsis carinata, J. de C. Sowerby, 1826. 



Melanop.^is carinata. 



Mineral Conchology, 1826, pi. 523. fig. 1. (Sowerby Coll.) 



Forbes's ' I.sle of Wight,' Mem. Geol. Surv. 1850, pi. vi. figs. 8, 0, p. 150. 



