ADDITIONS. 429 



1850. Cardium Maili.eanum, d'Orhignij. Prodr. de Pal., vol. ii, p. 162. 

 1866. — — F.J.PicletandG.Campiche. Foss. Terr. Crt't. Ste. 



Croix (Mater. Pal. 

 Suisse, ser. 4), p. 

 270. 

 1871. — — F. StoUczka. i'alicoul. Indica. C'ret. Fauna S. 



India, vol. iii, j). 213 {Lievi- 

 • cardluni). 



Description. — Shell iutlated, oval or subqaadrato, longer than high, moderately 

 inequilateral. Anterior margin rounded, passing gradually into the slightly convex 

 ventral margin. Posterior margin high, subtruncate, forming an angle with the 

 straight postero-dorsal margin. Postero-dorsal part of shell compressed. Umbones 

 broad, curved forward. Ornamentation consists of concentric growth-lines and 

 fine radial ribs. 



Base of Chalk of (1) Beaminster, (2) Maiden Newton, (3) Cerne, (4) TitluTleigli. 



Remarks. — This species was referred to Cardium by d'Orbigny, but the shell 

 differs in form from that other Cretaceous species of that genus, and resembles 

 more nearly Unicardium. The hinge is not known satisfactorily, but internal casts 

 show indications of two cardinal teeth. 



The ornamentation is often imperfectly preserved. 1 am indebted to ]\I. de 

 Grossouvre for the opportunity of examining specimens from the Cenomanian of 

 Rouen. 



Type. — From the Cenomanian of Rouen. 



Distribution. — Base of the Chalk (zone of Schlcenbachia varians) of Beaminster, 

 Cerne, Maiden Newton, Titherleigh and Chard. 



Tkm.tn.v ? PHASKOLiNA {riiHIIps), 1829. Plate LXII, fig. 10. 



[Omitted from Vol. II, p. 177.] 



1829. Mta phaseolina, .T. P/a7/(>. Geol. Yorks., p. 121 (p. 254, ed. 3), pi. ii, 



tig. 13. 

 1850. Lavignon phaseolina, A. d'Orbigny. Prodr. de Pal., vol. ii, p. 117. 

 1854. Mta i-haseoi.ina, J. iVocci'i!. Cat. Brit. Foss., ed. 2, p. 212. 

 1870. Lavkjnon phaseolina, F. Stoliczkn. Pala;out. ludica, Cret. Fauna S. 



India, p. 111. 



56 



