CLEMENT! A. 191 



Ricordeana is less elongato and its postero-dorsal margin is iiinre convex and slopes 

 more rapidly than in Venns suh-Brnngninrtiann, d'Orbigny.' 



Remnrlcit. — This is probably the species which has been recorded by some 

 authors from the Lower Grreensnnd as Vevm^ nvalis and Asfarfr s^vJistrinta, Leymerie. 

 The proportions of length and height vnry considerably in different specimens. 



Distribution. — Lower Greensand (/^'9-»rt-bed) of Atherfield. Atherfield Beds 

 of East Shalford, Redhill, and Pensinarsh. Hythe Beds of Hythe, Lympne, and 

 I^nlbornnofli. 



Clementia (Flaventia) ovams {Sowerhy), 1827. Plate XXIX, figs. 19— 2*). 



1827. Ventjs ovams, .7. de C. Sowcrhy. Min. Conch., vol. vi. p. 129, [il. dlxvii, 



fig. 1 (not fig. 2). 

 18.50. — —A. (VOrhigny. Prodr. de Pal., vol. ii, p. 159. 



18.54. — — J. Morris. Cat. Brit. Foss., ed. 2, p. 2S1 (not from the 



localities given). 

 1870. — — F. Stolrczha. PaliEont. Indica, Cret. Fauna S. India, vol. 



iii, p. 160. 



Nonl840. - —A. Goldfiiss. Petref. Germ., vol. ii, p 247, pi. eli, fig. 5 



{Venus subovalig, d'Orbignj, 18.50). 



— 1846. — — A. E. Reuss. Die Verstein. der biJhm. Kreideformat., pt. 2, 



p. 21, pi. xxxiv, fig. 22. 



— 1847. — — /. Mailer. Petref. der Aachen. Kreidef., pt. 1, p. 24. 



— 1870. — — n. Credner. Zeitschr. d. deiitsch. geol. Gesellsch., vol. xx, 



p. 191. 



— 1884. Cytherea ovalis, E. Holzapfel. Ibid., vol. sxxvi, p. 464, pi. vii, figs. 2 — 4. 



— 1888. — — G. Mailer. Jahrb. d. Ic. preussisch. geol. Landesanst. fiir 



1887, p. 427. 



— 1889. — — E. Holzapfel. Die Mollusk. Aachen. Kreide (Palseon- 

 ^ tographica, vol. xxxv), p. 169, pi. xiii, 



figs. 11—15. 



— — Venu.s — A. Fritgch. Stud, im Gebietc der biihni. Kreideformat., 



iv, Teplitz. Schicht., p. 80, fig. 69. 



— 1898. Cythehea — G. Mailer. Mollusk. d. Untersen. v. Braunschweig u. 



Ilsede, p. 66. pi. ix, fig. 15. 



— 1901. -- — F.Sturm. Jahrb. d. k. preussisch. geol. Landesanst. fiir 



1900. vol. xxi. p. 83. 



Z)(?.5ci-i2)<ioH.— Shell elongate-oval, of moderate convexity, considerably inequi- 

 lateral. Antero-dorsal margin rather long, concave. Anterior margin rounded, 



' Leymerie, 'Mem. Soc. geol. de France,' ser. 2, vol. v (1842), pp. 5, 25, pi. v, fig. 7; d'Orbigny, 

 ' Pal. Fran?. Terr. Crc't.,' vol. iii (1845), p. 4:52, pi. ci.lxxxii. figs. 3—6; Pictet and Campiche, 'Terr. 

 Crt't. Ste. Croix' (1865), p. 168. pi. cxi, fig. 1. 



