Figs. 
ike 
oO 
o> 
“I 
PLATE XLIV. 
LiopistuHa (continued). 
L. (Psilomya) gigantea (Sow.). Upper Greensand, Blackdown. Sedgwick 
Museum, Cambridge. la, right valve; 1, dorsal view of the same. 
2, left valve. (P. 257. 
Cuspiparia (continued). 
C. Sabaudiana (Pict. and Camp.). Gault, Folkestone. Sedgwick Museum. 
a, right valve; b, ornamentation X 5. (P. 259.) 
C. undulata (Sow.). Gault, Folkestone. Sedgwick Museum. Right 
valve. (P. 260.) 
C. pulchra (Sow.). 5, Upper Chalk, Norwich. Norwich Museum. a, 
internal cast of right valve; b, dorsal view. 6, Chalk Rock, Henley 
Park; Sedgwick Museum, from Mr. L. Treacher’s Collection; right 
valve. (P. 260.) 
CO. pulchra ? (Sow.). Upper Greensand, Devizes. British Museum, No. 
L21785. Internal cast, somewhat crushed. a, right valve; b, dorsal 
view. (P. 261.) 
C.? sp. Chalk Marl, Ventnor. British Museum, No. 38266. (P. 261.) 
