PROSOBEANCHIATA. OLIVIDiE. 101 



Trivia Prestwlchii, Edwards, 1854, 



Trivia I'lesticic/tii. 

 Mon. Pill. Soc. 1854, pi. xvii. %. 2, p. 134. (F. E. Edwards Coll.) 



Horizon and Locality. 



Lower Euceiie. — London Clay. Cuffell, near Basingstoke. 



Trivia Wetherellii, Edwards, 1854. 



Trivia Wetherellii. 

 Mon. Pal. Soc. \&U, pi. xvii. figs. 4''-4'=, p. 133. (Wetherell Coll.) 



Horizon and Localities. 



Lower Eoeeue. — Loudon Clay. Whetstone ; Primrose Hill. 



Family OLIVIDJ^, d'Orbigny. 



Gonus OLIVA, Eruguitro, 1789. 



Encycl. M6th. 1789, pis. 301-3G8. 



Adopted by Cuvier, 1798. Tabl. :^lem. Hist. Nat. Animaiix, p. 409. 



Oliva Branderi, J. Sowerby, 1821. 



Valuta Ispidida. 

 Brander's 'Foss. llant.' 1700, pi. vi. fig. 72, p. 33. {Non Linnoeus.) 

 (Brander Coll.) 



Oliva Branderi. 

 Mineral Conchology, 1821, pi. 288, upper figure. (Sowerby Cull.) 

 Coq. Fos.s. Paris, 183o, vol. ii. pi. xcvi. figs. 17, 18, p. 740. 



Horizons and Localities. 



Upper Eocene. — Barton Beds. Barton ; Ilordwell ; Beacon Bunney. 

 Middle Eocene. — Bracklesliam Beds. Hinton, Hants. 



Oliva gracilis, Isaac Lea, 1833. 



Oliva qracilis. 

 Contributions to Geology, 1833, pi. vi. fig. 196, p. 182. 



Horizon and Locality. 



Middle Eocene. — Bracklesliam Beds. Braeklesham Bay. 



Oliva pygmaea, Edwards (MS.). 



Horizon and Locality. 



Middle Eojene. — Braeklesham Beds. Bramshaw. 



Oliva Salisburiana, J. Sowerby, 1821. 



Oliva Salisburiana. 



Mineral (Joncliology, 1821, pi. 288, lower figures. 

 Horizon and L^/calities. 



Upper Eocene. — Barton Beds. Barton ; Alum Bay (no. 29 Bed). 



