280 GASTEROPODA. 



Limnsea recta, Edwards, 1852. 



I Ayn.in.fp.n. VGCttt 



Men. Pal. Soc. 1852, pi. xiv. figs. 7% 7", p. 96. (F. E. Edwards Coll.) 



Morizon and Locality. , 



Oliffocene. — Ileadon Beds. Headon Hill. 



Iiimnsea sublata, Edwards, 1852. 



LtmruBtt sitblata. 



Men. Pal. Soc. 18.52, pi. xiii. fifrs. A^, 4», p. 88. (F. E. Edwards Coll.) 



Horizoti and Locality. 

 Oligocene. — Headon Beds. Headon Hill. 



Limnsea subquadrata, Edwards, 1852. 



Limiuea sithquadraUi. 

 Mon. Pal. Soc. 1852, pi. xiii. figs. 1', l^ p. 92. (F. E. Edwards Coll.) 



Horizon and Localities. 

 Oligocene. — Headon Beds. Headon Hill ; Hordwell, 



Limnsea sulcata, Edwards, 1852. 



Limnaa sulcata. 

 Mon. Pal. Soc. 1852, pi. xiv. figs. 4% 4S p. 87. (F. E. Edwards Coll.) 



Horizon and Locality. 



Oligocene. — Headon Beds, Headon Hill. 



Limnsea tenuis, Edwards, 1852. 



Limneea tenuis. 

 Mon. Pal. Soc. 1852, pi. xiv. tigs. 11a, ip)^ p. 97. (F. E. Edwards Coll.) 



Horizon and Locality. 

 Oligocene. — Headon Beds. Headon Hill. 



Limnsea tumida, Edwards, 1852. 



Limncea tumida. 

 Mon. Pal. Soc. 1852, pi. xiii. figs. 0% 6^ p. 91. (F. E. Edwards Coll.) 



Horizon and Localities. 



Oligocene. — Headon Beds. Ileadon Hill ; Hordwell. 



Limnsea, n. sp. 



Horizon and Locality. 



Oligocene. —Headon Beds. Headon Hill. 



Genus PITHARELLA, F. E, Edwards, 1860. 

 Geologist, 1800, p. 210. 



Pitharella Rickmani, Edwards, 1860. 



Pitharella Rickmani. 

 Geologist, 1800, pi. v. figs. 1-3, p. 210. (F. E. Edwards Coll.) 

 Mon. Pal. Soc. 1877, p. 339. 



Horizon and Locality. 

 Lower Eocene. — Woolwich Beds. Dulwich. 



