MYTILID^. 11 



Modiola dimidiata, S. V. Wood, 1861. 



Modiola dimidiata. 



Mon. Pal. Sec. 1861, pi. xiii. fig. 5, p. 64. (F. E. Edwards Coll.) 

 Horizon and Localities, 



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



Modiola diversa, S. V. Wood, 1861. 



Modiola diversa. 



Mon. Pal. Soc. 1861, pi. x. fig. 5, p. 74. (F. E. Edwards Coll.) 

 Horizon and Locality. 



Upper Eocene. — Barton Beds. Barton. 



Modiola dorsata, J. Morris, 1854. 

 Modiola dorsata. 



Quart. Journ. Geol. Soc. 1854, vol. x. pi. ii. fig. 14, p. 158. (F. E. Edwards 



Coll.) 

 Mon. Pal. Soc. 1861, pi. xiii. fig. 2, p. 6.5. (F. E. Edwards Coll.) 

 Horizons and Localities. 

 Lower 'Eocene.— London Clay. Elmstead Tunnel ; Heme Bay. — Woolwich 

 Beds. Sundridge. 



Modiola elegans, J. Sowerby, 1812. 

 Modiola eleyans. 



Mineral Conchology, 1812, pi. 9. (Sowerby Coll.) 



Mon. Pal. Soc. 1861, pi. xii. figs. 5", o', p. 65. 

 Horizons and Localities. 



Oligocene. — Headon Beds. Mead End ; Hordwell. 



Upper Eocene. — Barton Beds. Barton. 



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



Lower Eocene. — London Clay. Kingston, near Thames Ditton ; Bognor (?) ; 

 Basingstoke ; Alum Bay (no. 4 Bed) ; Highgate ; Finchley. 



Modiola elegans, var. elegantior, S. V. Wood, 1861. 

 Modiola elegans, var. elegantior. 



Mon. Pai. Soc. 1861, pi. xii. fig. 5-=, p. 65. (F. E. Edwards Coll.) 

 Horizon and Localities. 



Oligocene.— .Hcarfore Beds. Mead End ; Hordwell. 



Modiola eximia, S. V. Wood, 1861. 



Modiola eximia. 



Mon. Pal. Soc. 1861, pi. xiii. fig. 6, p. 66. (F. E. Edwards Coll.) 

 Horizon and Locality. 



Upper Eocene. — Barton Beds. High Cliff. 



Modiola flabellula, S. V. Wood, 1861. 

 Modiola flahellula. 



Mon. Pal. Soc. 1861, pi. xiii. figs. 9»-9', p. 67. (F. E. Edwards Coll.) 

 Horizon and Locality. 



Oligocene. — Hempstead Beds. Hempstead. 



