PEOSOBKANCHIATA.- — VKRMETIUJ;. 21 7 



Family VERMETIDiE, Orbigny. 



Genus THY£J\.CODES, Guettard, 1770, emen. L. Agassiz, 1846. 



Tulaxodus, Guettard, 1770. 

 Guettard's M(Sm. Sci. Arts, 1770, vol. iii. p. 143. 



Thylacndes, L. Agassiz, 1846, and O. A. L. Morch, 1802. 



Nom. Zool. Index Universalis, 184G, p. 370. 



Proc. Zool. See. 1862, p. 64. 



Serpulorbis, Sassi, 1827. 



Giornale ligiistico Scienze, 1827, p. 482. 



Kv Fgrussac, Bull. Sci. Nat. 1829, vol. 19. p. 123. 



Thylacodes cancellatus, Deshayes, 1861. 



Serpulorbis cancellatus. 

 Desc. Anim. sans Vert. 1861, vol. ii. pi. ix. fig. 8, p. 284. 



Horizons and Localities. 



Upper Eocene. — Barton Beds. Barton. 



die Eocene. — Bracklesham Beds. Huntingbridge ; Brook ; Bramsbaw, 



M?i; 



Thylacodes Deshayesi, K. B. Newton, nom. mut. 



Serpulorbis ornatus. 



l)esc. Anim. sans Vert. 1861, vol. ii. pi. i.x. fig. 23, p. 285, non J, de C. 

 Sowerby, 1850. 



Horizon and Locality. 



Upper Eocene. — Barton Beds. Barton. 



Thylacodes ornatus, J. de C. Sowerby, 1850. 



Serpula ornattis. 



Dixon's ' Sussex,' 1850, pi. ix. %. 21. (F. E. Edwards Coll.) 

 Horizon and Locality. 



Middle Eocene. — Bracklesham Beds. Bracklesham Bay. 



Thylacodes porrectus, Deshayes, 1861. 



Serpulorbis porrectus. 



Desc. .\nim. sans Vert. 1861, vol. ii. pi. ix. fig. 18, p. 288. 

 Horizon and Localities. 



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



Thylacodes strictus, Deshayes, 1861 (var.). 



Serpulorbis strictus. 



Desc. Anim. sans Vert. 1861, vol. ii. pi. ix. fig. 13, p. 28-5. 

 Horizon and Localities. 

 Middle ^ocew.— Bracklesham Beds. Bramsbaw ; Brook. 



