6 LAMELLIBRANCHIATA. 



Pecten duplicatus, J. de C. Sowerby, 1827. 



Pecien duplicatus. 



Mineral Conchology, 1827, pi. 575. figs. 1-3. (Sowerby Coll.) 



Men. Pal. Soc. 1861, pi. viii. fig. 10" ; pi. x. fig. 3, p. 41. (R E. Edwards CoU.) 



Horizon and Localities. 

 Lower Eocene. — London Clay. Hampstead ; Highgate ; Haverstock Hill ; 

 Muswell Hill ; Primrose HiU ; Heme Bay ; Hyde Park ; Well at Rich- 

 mond Hill. 



Pecten idoneus, S. V. Wood, 1861. 



Mon. Pal. Soc. 1861, pi. viii. figs. 9*, 9'', p. 41. (F. E. Edwards Coll.) 



Horizon and Localities. 

 Middle Eocene. — BracMesham Beds. Brook ; Stubbington. 



Pecten plebeius (?), Lamarck, 1806. 



Pecten plebeitis. 



Ann. Mu8. 1806, vol. 8. p. 353. 



Pecten plebeius (?), var., J. de C. Sowerby, 1850. 

 Dixon's ' Sussex,' 1860, pi. iii. fig. 32, p. 94. (Dixon Coll.) 



Horizon and Locality. 



Middle Eocene. — Bracklesham Beds. Bracklesham Bay. 



Pecten reconditus, Solander, 1766. 



Pecten recondittis. 

 Brander's 'Foss. Hant.' 1766, pi. viii. fig. 107, p. 42. 

 Mon. Pal. Soc. 1801, pi. ix. figs. 3'S% p. 42. (F. E. Edwards Coll.) 



Horizons and Localities. 



T'pper Eocene. — Barton Beds. Barton. 



Middle Eocene. — Bracklesham Beds. Huntingbridge. 



Pecten squamulay Lamarck, 1806. 



Pecten squamula. 



Ann. Mus. 1806, vol. 8. p. 3-54. 



Dixon's ' Sussex,' 18.30, pi. iii. fig. 29, p. 172. (F. E. Edwards Coll.) 



Mon. Pal. Soc. 1861, pi. ix. figs. 6*, 6^ p. 44. (F. E. Edwards CoU.) 



Horizon and Localities. 



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



Pecten triginta-radiatus, J. de C. Sowerby, 1850. 



Pecten triyinta-radiatits. 



Dixon's ' Sussex,' 1850, pi. iii. fig. 31, p. 172. (F. E. Edwards Coll.) 

 Mon. Pal. Soc. 1861, pi. ix. fig. 4, p. 45. (F. E. Edwards Coll.) 



Horizon and Locality. 



Middle Eocene. — Bracklesham Beds. Bracklesham Bay. 



Pecten triginta-radiatus, var. quadraginta-radiatus, J. de C. 



Sowerby, 1850. 



Pecten quadraginta-radiatm. 

 Dixon's ' Sussex,' 18.50, pi. iii. fig. 3.3, p. 173. (Dixon Coll.) 



