ARCID^. 21 



Genus LIMOPSIS, Sassi, 1827. 



Giomale ligustico di Scienze, 1827, p. 467 ; ex F^rusaac, Bull. Sci. Nat. 

 1829, vol. xviii. p. 167. 



Limopsis granulata, Lamarck, 1805 and 1807. 



Pectunmhis granulatiis. 

 Ann. Mug. 1805, vol. 6. p. 216 ; 1807, vol. 9. pi. xvi. fig. 0. 



Limopsis granulata. 

 Dixon'a ' Sussex,' 1850, pi. iii. fig. 19, pp. 9.3, 170. (F. E. Edwards Coll.) 

 Mou. Pal. Soc. 18C4, pi. xvii. figs. 10^', 10", p. 103. (F. E. Edwards Coll.) 



Horizon and Locality. • 



Middle Eocene. — Brackleshtim Beds. Bracklesham Bay. 



Ijimopsis lentiformis (?), Deshayes, 1860. 



Limopsis lentiformis. 



Desc. Anim. sans Vert. 1800, vol. i. pi. Ixxii. figs. 10-12, p. 843. 



Horizon and iMcality. 



Lower Eocene. — Londo^i Clay. Finchley. 



Limopsis scalaris, J. de C. Sowerby, 1824. 



Pedunculas scalaris. 



Mineral Concliology, 1824, pi. 472. fig. 2. (Sowerby Coll.) 



Limopsis scalaris. 



Mon. Pal. Soc. 1804, pi. xvii. figs. 9», O'', p. 104. (F. E. Edwards Coll.) 



Horizon and Locality. 

 Upper Eocene. — Barton Beds. Barton. 



Genus TRIGONOCCTJLIA, Nyst and Galeotti, 1835. 

 Bull. Ac. R. Sci. Brux. 1835, vol. ii. pp. 287-296, 347, 348. 



Trigonocoelia cancellata, Deshayes, 1860. 



Triyonoccdia cancellafa. 

 Desc. Anim. sans Vert. 1860, vol. i. pL Ixiv. figs. 31-.35, p. 838. 

 Mon. Pal. Soc. 1864, pi. xix. fig. 12, p. 106. (F. E. Edwards Coll.) 



Horizon and Locality. 

 Middle Eocene. — Bracklesham Beds. Iluntingbridge. 



Trigonocoelia deltoidea (?), Lamarck, 1805 and 1807. 



Kncula deltoidea. 



Ann. Mus. 1805, vol. 0. p. 126; 1807, vol. 9. pi. xvi. fig. .5. 

 Mineral Conchology, 1827, pi. 554. fig. 1. (Sowerby Coll.) 



Trigrynoccelia deltoidea. 

 Mon. Pal. Soc. 1864, pi. xix. figs. 11»-1P, p. 105. (F, E. Edwards Coll.) 



Horizons and Localities. 



Oligocene. — Bembridye Beds. Bembridge. — Headon Beds. Ilordwellf 



Mead End ; Colwell Ray ; Itoydon ; Iloadon Hill ; Lyndhurst. 

 I'pper Eocene. — Barton Beds. Barton. 



