I 



f 



ARCID^. 17 



Area Iiaekeniana, Le Hon, 1863. 



Area aviculina (?). 



Desc. Anim. sans Vert. 1860, pi. Ixvi. figs. 16-17, p. 887. 

 Mon. ral. Soc. 1864, p. 80. 



Area Laekeniatia. 



Uesc. uouv. espec. Eocenes Bruxelles, 1863, p. 7 (no figure). 



Mon. Pal. Soc. 1864, pi. xv. figs. 7", 7^ p. 80. (F. E. Edwards Coll.) 

 Horizon and Localities. 



Middle Eocene. — BracMesham Beds. Bracklesham ; Bramshaw ; Hunt- 

 ingbridge ; Brook ; WhiteclifF Bay. 



Area Laekeniana, var. cylindrical S. Y. Wood, 1864. 



Area Laekeniana, var. eylindrica. 



Mon. Pal. Soc. 1864, pi. xv. fig. 7", p. 80. 



Horizon and Localities. 



Middle Eocene. — Bracklesham Beds. Brook ; Huntingbridge. 



Area Lyelli (?), var. contorta, Deshaj-es, 1824 and 1860. 

 Area Lyelli. 



Coq. Fobs. Paris, 1824, vol. i. pi. xxxiv. figs. 9-11, p. 200, 



Area contorta. 



Desc. Anim. sans Vert. 18C0, pi. Ixv. figs. 29-32, p. 873. 



Area Lyelli (?), var. contorta. 



Mon. Pal. Soc. 1864, pi. xv. figs. 12", 12", p. 87. (F. E. Edwards Coll.) 

 Horizon and Locality. 



Upper Eocene. — Barton Beds. Barton. 



Area Lyelli (?), var. lamellosa, Deshayes, 1824 and 1860. 

 Area lamellosa. 



Desc. Anim. sans Vert. 1860, pi. Ixix. figs. 4-9, p. 872. 



Area Lyelli (?), var. lamellosa. 

 Mon. Pal. Soc. 1864, pi. xv. figs. 13», 13*, p. 87. (F. E. Edwards Coll.) 



Horizon and Locality. 

 Upper Eocene. — Barton Beds. High Cliff. 



Area modiolifoxnuis, Deshayes, 1824. 

 Area modioliforinis. 



Coq. Foss. Paris, 1824, vol. i. pi. xxxii. figs. 5, 6, p. 214. 



Mon. Pal. Soc. 1864, pL xiv. figs. .5-, 5", p. 88. (F. E. Edwards Coll.) 



Horizon and Locality. 



Middle Eocene. — Bracklesham Beds. Stubbington. 



Area nitens, J. de C. Sowerby, 1837. 

 Area nitens. 



Trans. Geol. Soc. 1837, 2nd ser. vol. v. pi. viii. fig. 9, p. 136. (Wetherell 



Coll.) 

 Mon. Pal. Soc. 1864, pi. xv. figs. 5", 5", p. 88. (F. E. Edwards Coll.) 



Horizon and Localities. 

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



Area omata, Edwards (MS.). 

 Horizon and Locality. 



Middle l-'ocene. — Bracklesham Beds. Bramshaw. 



