LIMA. 27 



1869. LIMA CLYPEIFORMIS, F.. J. Pictet and G. Campiche. Foss. Terr. Oct. Ste. 



Croix (Mater. Pal. Suisse ser. 5), 

 p. 168. 



1871. BADULA (ACESTA) CLYPEIFORMIS, F. StoliczJca. Palaeont. Indica, Cret. 



Fauna S. India, vol. iii, 

 p. 414. 



Description. Shell very large, compressed, oval, rounded, only slightly oblique. 

 Height equal to or slightly greater than length. Antero-dorsal margin more or less 



Fio. 5. Lima (Acesta) clypeiformis, d'Orbigny. Upper Greensand, Chard. Eight valve. Taunton 



Museum, x |. 



straightened and relatively short. Ears rather small, the anterior larger than the 

 posterior. Surface of shell smooth, except for growth-lamellae at intervals. 

 Measurements : 



Length . . . . . . . . . 160 mm. 



Height . 168 



Upper Greensand, Chard. 



