49: 
side ; of the other valve, with a cavity in the middle 
and a transverse deeply cloven lateral tooth on each 
side, the segments of which divaricate from the 
beak. 
L. Squamosum. Turt. B. p. 62. t. 6. f. 1, 2, 3.— 
F. p. 429.—Soren S. Mont. p. 565.——Wood. G. C. 
p. 140.—D. p. 70.—Turt. C. D. p. 164.—Pellucid, 
thin, white, obscurely wrinkled concentrically, punc- 
tured in a scale-like manner; beak small, pointed; 
inside glossy, with small longitudinal radiating strie. 
0,40...0,5. Torbay and Tenby. 
L. Nitipum. Turt. B. p. 63.—F. p. 49.—Glossy, 
slightly striated concentrically, not punctured, horn 
coloured. 0,20...4. Torbay. 
Genus.—GOODALLIA. Turton. 
Triangular, equivalve, imequilateral, closed: hinge 
with two teeth in one valve and a triangular cavity 
between them, in the other valve a single tooth : 
a lateral simple tooth in each valve on the produced 
side. 
G. Triranevuraris. Turt. B. p.77. t.6. f. 14.— 
F. p.429.—Mactra T. Mont. p. 99. ¢. 3 f. 3. 
—D. p. 143.—Turt. D. p. 82.—Strung, smooth, 
