212 GASTEROPOBA.. 



riiciscala inlerrupta. 

 E. de Boury (MS.). 



Horizons and Localities. 



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

 Middle Eocene. — Brackleskam Beds. Bramshaw ; Brook. 



Scala interrupta, var. elongata, E. de Boury (MS.). 



Pliciscala interrupta, vav. elont/ata. 

 E. de Boury (MS.). 



Horizon and Locality. 



Upper Eocene. — Barton Beds. Barton. 



Scala interrupta^ var. simplex, Edwards (MS.). 



Scalaria interrupta. 



Dixon's ' Sussex,' 1850, pi. vii. fig. 14, p. 99. (Dixon Coll.) 



Pliciscala interrupta, var. simplex. 

 E. de Boury (MS.). 



Horizon and Localities. 



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

 Brook. 



Scala Isevis, J. Morris, 1856. 



Scalaria Iceris. 

 Forbes's 'Isle of Wight,' Mem. Geol. Surv. 185C, pi. iv. fig. 1, p. 151. 



Gyroscala Icevis. , 



E. de Boury (MS.). 

 Horizon and Localities. 



OUgocene. — Headon Beds. Colwell Bay ; Hordwell. 



Scala lissa, Edwards (MS.). 



Clatl riis lissa. 

 E. de Boury (MS.). 



Horizon and Locality. 

 Middle Eocene. — Bracklesham Beds. Bracklesham Bay. 



Scala Prestwichii, Edwards (MS.). 



Gyroscala Prestwichii. 

 E. de Boury (MS.). 



Horizon and Locality. 

 Lower Eocene. — London Clay. Clarendon. 



Scala primula, Deshayes, 1861. 



Scalaria priynula. 



Desc. Anim. sans Vert. 1801, vol. ii. pi. xi. figs. 25, 26, p. 339. 



Cerithiscala primula. 

 Eludes sous genres Scalidee, 1887, pp. 27, 28. 

 Desc. Scalidae nouv. 1887, p. 38. 



Horizon and locality. 



Upper Eocene. — Barton Beds. High Cliff. 



