CYPRIMERIA. 187 



from the Oenomanian of Rouen. English specimens agree with those found at 

 Rouen, except that in many cases the shell is somewhat shorter relatively. The 

 surface is ornamented with concentric ribs. In G. (Gyclorisma) rotomagensis the 

 shell is more convex, more inequilateral, and the postero-dorsal margin has a 

 greater slope than in G. (Gyclorisma) parva. The hinge appears to be unknown. 



Distribution. — Base of the Chalk Marl of Maiden Newton and Chard. Chloritic 

 Marl of Melbury, Woolcombe, Maiden Bradley and the Isle of Wight. 1 



Cyimumkria (Ctclorisma) faba (Sowerby), 1827. Plate XXIX, figs. 7 — lo. 



1827. Venus faba, /. de C. Sowerby. Miu. Couch., vol. vi, p. 129, pi. dlxvii, fig. 3. 

 1850. — A. d'Orbigny. Prodr. dePal., vol. ii, p. 159 (partim). 



1854. — /. Morris. Cat. Brit. Foss., ed. 2, p. 230 (partim). 



1868. A. Briart and F. L. Comet. Meule de Bracquegnies (Mi'm. 



cour. et Mem. des Sav. ctrangers, 

 vol. xxxiv), p. 73, pi. viii, figs. 

 9, 10. 

 1870. F. Stoliczlca. Palaiont. Indica, Cret. Fauna S. India, vol. iii, 



p. 160. 

 1873. — H. B. Geinitz. Das Elbthalgeb. in Sachseu (Paloeonto- 



graphica, vol. xx, pt. 2), p. 65, pi. xviii, 

 figs. 9, 10. 

 ? 1882. — /. Kiesow. Schrift. d. nat. Gesellsch. in Danzig, N.F., vol. v, 



p. 239. 

 ? 1885. — F. Notling. Die Fauna d. baltisch. Cenoman. (Palseont. 



Abliandl., vol. ii), p. 32, pi. vi, fig. 1. 



Nou 181.0. A. Gotdfnss. Petref. Germ., vol. ii, p. 247, pi. eli, fig. 6 (V. 



sub/aba, d'Orbigny). 



- 1843. — H. B. Geinitz. Die Verstein. von Kieslingswalda, p. 13, pi. ii, 



figs. 7 — 9. 

 ? -■ 1845. A. d'Orbigny. Pal. Franc. Terr. Cret., vol. iii, p. 444, pi. 



ccclxxxv, figs. 6 — 8. 



- 1846 A. E. Beuss. Die Verstein. der bohm. Kreideformat., pt. 2, 



p. 21, pi. xli, fig. 12. 



- 1847. J. M litter. Petref. der Aachen. Kreidef., pt, 1, p. 24. 



— 1859. — immersa, Matter. Ibid., Supplement, p. 13. 



— 1863. — faba, A. v. Strombeck. Zeitschr. d. deutsch. geol. Gesellsch., vol. 



xv, p. 147. 



1 An imperfect left valve from the Cenomanian (Bed 12) of Whitecliff, South Devon, was 

 identified by C. J. A. Meyer with Venus Goldfussi, Geinitz, ' Das Quadersandst. oder Kreidegeb. in 

 Deutschland ' (1850), p. 154, pi. x, figs. 7, 8 ; ' Das Elbthalgeb. in Sachsen ' (' Palseontographica,' vol. 

 xx, pt. 2, 1873), p. 67, pi. xviii, figs. 16, 17. There is not sufficient evidence to confirm this identifica- 

 tion ; the anterior part of the specimen is more produced than in the case of the examples figured by 

 Geinitz. 



