44 MOLLUSCA FROM THE CRAG. 



least one third greater than the length ; the hinge line in this is more oblique, the 

 ligamental area l)roadcr and more shallow, with a smaller gape on both sides. Two 

 forms of the British shell have been figured by Professor Forbes in the ' Mag. Nat. 

 Hist.,' one of which is less elongated than the other, and more nearly approaches 

 our shell, but there is still apparently a sufficient difference to keep them separated. 



2. Lima hians, Gmeliri. Tab. VH, fig. 2, a — c. 



OsTREA niAXS. Gtnel. Syst. Nat., p. 3332. 



— — Turt. ed. Linn., vol. iv, p. 273, 1806. 



— — W. Wood. Ind. Test., p. 51, pi. 1 1, fig. 53, 1825. 



Lima teneka. Turt. Zool. Journ., vol. ii, p. 362, t. 13, fig. 2 (not tenera Chem.). 



— — Brown. Illust. Conch. Gr. Brit., pi. 31, figs. 8, 9, 1827. 



— — Forbes. Malac. Monen., p. 41, 1838. 



— — Id. Report on yEgean Invert., p. 182, 1843. 



— — Phil. En. Moll. Sic. vol. ii, p. 56, pi. 16, fig. 3, 1844. 



— i.\FL.i.TA. /'V6e«. Malac. Mouen., p. 41, 1838. 



— Sausii. Kroyer, fide Lovcii. 



— viTRiNA. Brown. Illust. Conch. Gr. Brit., pi. 31, figs. 10, 11. 



— lUAGiLis. Flem. Brit. Ann., p. 388, (partly,) 1828. 



— — Id. Crouch. Corn. Faun., pt. 2, p. 37. 



— APERTA. G. B. Sow. Thcs. Conch., vol. i, p. 87. pi. 22, figs. 26 & 27, 1847. 



— — Thorpe. Brit. Mar. Conch., p. 249. 



— lUANs. ioi,r«. Ind. Moll. Scand., p. 32, 1846. 



— — Forh. and Ilanl. Hist, of Brit. Moll., vol. li, p. 2C8, pi. 52, figs. 3—5, and 



pi. R (animal), 1849. 



— OBLONGA. S. Wood. Mag. Nat. Hist., New Series, vol. iii. p. 234, pi. 3, fig. 2, 1839. 

 LiMiE. Forbes. Mag. Nat. Hist., vol. viii, pp. 593, 594, figs. 63 & 64, 1835. 



Spec. Char. Testa ohlongo-ovatd, obliqud, valde intequilatcrd, depresm, gracili, codato- 

 gtriatd, striis vel radiis numerosis, asperimis, irregidaribm, cardine ohliqm, area triaupulari 

 laid, aiiriculis aqualihm ; marginc denticrdato. 



Shell clongato-ovate, oblique, very inequilateral, depressed, and slender ; striated 

 with numerous, rough, irregular, and sliglitly waved stria', projecting beyond the 

 ventral margin ; gaping widely on the posterior side, slightly so on the anterior ; 

 ligamontal area large and triangular, umbones prominent and distant. 

 Hcicjld, 1 inch. Length, 6-lOths of an inch. 

 Locality. Cor. Crag, Ramsholt. 



Recent, Britain, Scandinavia, and Mediterranean. 

 This appears more scarce as a fossil than the preceding, having as yet obtained 

 only two specimens, and those both of the same value, and from the same locality, 

 there is, however, little doubt of its identity with the recent British species. 



The form of this shell is comparatively much more elongated than the preceding, and 

 is somewhat flatter ; it gapes widely on both sides, that on the posterior is particularly 

 deep inmicdiately behind the hinge line, while the front gape is near tiio ventral 



