76 
Carpium Discors. Mont. p. &4.—Wood. G. C. p. 
214.—Srrieinrta P. Turt. B. p. 119.—Somewhat 
globular, subequilateral, glossy white, with numerous 
striae, which anteriorly bend in acute angles towards the 
hinge; beaks small, inclining a little to one side; hinge 
with a single plain cardinal tooth on one valve, closing 
between two (one small) in the other, and a remote pro- 
minent lateral tooth. 4. Falmouth, extremely rare. 
L. Divaricata. Lam.—Tetziina D. Lin. 1120.— 
EY, M. t. 285. f. 4.—Ch. f. 129.— Wood. G. C. p. 195. 
t. 46. f.6.—D. p. 102.—Carpium Arcuatum. Mont: 
p. 85. t..3. f. 2.— Pen. 4. p. 190.—Inn. T. 8. p. 153. 
—Srricitta D. Turt. B. p. 120.—Orbicular, sub- 
equilateral, white, thin, rather convex, with a slight 
posterior flexuosity, with regular rather distant striz, 
which form rather oblique curved lines, and turn off at 
both the sides nearly at right angles; beaks very promi- 
nent; hinge with a single cloven tooth in one valve, 
closing between two plain ones in the other, a small 
remote lateral tooth in each valve. 2. Teignmouth. 
L. Trcertna. Sow.—Venus T. Lin.?1133,4—- 
D. p. 191—Ch. f. 390,1.—E. M. t. 277. f. 4.— 
Mont. p. 119. t. 4. f. 1.—Lin. T. 8. p. 86. €. 2. f. 5. 
—Dor. Cat. p. 35. ¢. 1. f. 14.—Turt. C. D. p. 249. 
