rROSOnRANCniATA. rLEUROTOMID^. 107 



Ilorizcm and Localities. 



Lower Eocene. — London Clay. Ilighgate ; Clarendon Hill ; Potter's Bar ; 

 Ilornsey. 



Pleurotoma cocciphora, Edwards, 1856. 



I'letirotoma cocciphora. 

 Mon. Pal. Soc. 18.50, pi. x.xvi. fig. 2, p. 217. (Wetherell Coll.) 



Horizon and Locality. 

 Lower Eocene. — London Clay. Ilighgate. 



Pleurotoma cochlis, Edwards, 18G0. 



Pleurotoma cochlis. 

 Mon. Pal. Soc. 1800, pi. xx.xiii. fig. 0, p. 272. (F. E. Edwards Coll.) 



Horizon and Locality. 



Lower Eocene. — London Clay. Shenfield. 



Pleurotoma crassa, Edwards, 1856. 



I'lenrotoma crassn. 



Mon. Pal. Soc. 1856, pi. xxvi. figs, l^-l"", p. 212. (F. E. Ixlwards Coll.) 



Horizon and Localities, 



Lower Eocene. — London Clay. Southampton ; Shenfield ; Newnliam ; 

 Clarendon ; Hampstead ; Willesden ; Potter's Bar. 



Pleurotoma crassi-costa, Edwards, 1856. 



I'lenrotoma crassi-cosla. 



Mon. Pal. Soc. 18.00, pi. xxvi. figs. 10", 10'', p. 225. (F. E. Edwards Coll.) 



Horizons and Ljocalities. 



Upper Eocene. — Barton Beds. Barton. 



M iddle Eocene. — BracVlcsham Beds. Bramshaw ; Brook ; Iliinting- 

 hridg-e. 



Pleurotoma cymsea, Edwards, 1850. 



Pleurotoma cymrea. 



Mon. Pal. Soc. 1850, pi. xxvi. figs. 4ii, 4\ and pi. xxvii. fig. 9 (var. nana'), 

 p. 215. (F. E. Edwards Coll.) 



Horizon arid Localities. 

 Oligoeene. — Headon Beds. Brockenhurst ; Eoydon; Whitley Hidge ; Col- 

 well Bay. 



Pleurotoma dentata, Lamarck, 1804 and 1806. 

 Pleurotoma dentata. 



Ann. Mils. 1804, vol. 3. p. 167 ; 1800, vol. 7. pi. v. fig. 1. 

 Coq. Foss. Paris, 183:!, vol. ii. pi. Ixii. iig.s. 3-8, p. 452. 

 Dixon's ' Sussex,' 1850, pl. vi. fig. 24, p. 102. (Dixon Coll.) 

 Mon. Pal. Soc. 1856, pl. xxvi. fig. 5, p. L'20. (F. E. Edwards Coll.) 

 Horizon and Ljocalities. 

 Middle Eocene.— Braeklesha/n Beds. Bracklesham Bay; Stubbington ; 

 Iluntingbridge. 



