62 LAMEI.LIBRANCUIATA. 



Cyprtcardia vaginoides. 

 Desc. Anini. sans Vert. 1860, vol. 1. p. 541. 



Horizon and Localitt/. 

 Upper Eocene. — Barton Beds. Barton. 



Genus ANISOCARDIA, Miinior-(ihalraas, 1863. 

 Journ. Conch. 1863, 3rd ser. vol. iii. p. 288. 



Anisocardia isocardioides, Deshayes, 1860. 



Cyjrricardia isocardioides. 

 Desc. Anim. sans Vert. 18C0, vol. 1. pi. Ivii. figs. 6-9, p. 534. 



Horizons and Localities. 

 Upper Eocene. — Barton Bids. Barton. 

 Middle Eocene. — Bracklesham Beds. Iluntingbridge. 



Anisocardia pectenifera, J. de C. Sowerby, 1823. 



Venus (?) pectenifera. 

 Mineral Conchology, 1823, pl. 422. lig. 4. 



Cypricardia pectenifera. 



Morris's Cat. Brit. Foss. 1843, p. 85. 

 Anisocardia pectenifera. 



Journ. Couchyl. 1883, s&\: 3, vol. xxiii. pl. vi. figs. 7, 7", p. 168. 



Horizims and Liocalities. 



Oligocene. — Headon Bedi. Roydon ; Broekenhurat. 



Upper Eocene. — Barton Beds. Barton. 



Middle Eocene. — Bracklesham Beds. Bracklesham Bay. 



Genus ISOCARDIA (Klein, 1753), Lamarck, 1709. 

 Ostracologica;, 1763, p. 138 ; M(5m. Soc. Hist. Nat. Paris, 1799, p. 86. 



Isocardia Bartonensis, Edwards (MS.). 



Horizon and Locality. 



Upper Eocene. — Barton Beds. Barton. 



Isocardia stilcata, J. Sowerby, 1821. 



Isocardia sulcata. 



Mineral Conchology, 1821, pl. 296. fig. 4. (Sowerby Coll.) 

 Horizon and Locality. 



Lower Eocene. — London Clay. Islington. 



Isocardia transversa, Nyst, 1836. 



Isocardia transversa. 



Mess. Arts Sci. Belgique, 1836, pl. iv. fig. 24, p. 10. 



Horizon and Locality. 



Oligocene. — Headon Bedt. Brockenhurst. 



