70 
T. Sorripura. Lam. 51.—Mont. p. 63.—Pen. 4. p, 
184, ¢. 52. f. 2. and 2a.—Lin. T. 8. p. 58,—Dor. 
Cat. p. 31. t 8.f. 4.—Turt. C. D: p. 177.—Da Cos. 
t.12. f. 4.—Iist. ¢. 405. f. 251.—PsamMoBIa 8. 
Turt. B. t. 8. f. 2. p. 95.—F. p. 43838.—T. Zonata. 
Gmel. 3250.—D. p. 100.—Rounded-triangular, thick, 
ventricouse, somewhat angulated and compressed ante- 
riorly, passing from white into yellow or pink, with 
darker bands and obsolete ridges of growth; hinge 
nearly central, with two indistinct cardinal teeth in each 
valve, no lateral. 4...3. Hacessively common on 
sandy shores. 
* * * Suborbicular with two cardinal teeth in each 
valve. 
T. Macutrata. Turt. C. D. p. 173. ¢. 13.—Turt. 
B. p. 108. #. 6. f. 7.—F. p. 436.—Rounded-oval, 
equivalve, flat, thin, whitish brown covered with darker 
spots irregularly disposed, and marked wtth numerous 
raised strie, crossed in their interstices by minute longi- 
tudinal ones ; inside yellowish white, glossy, two strong 
remote lateral teeth in each valve. 1...14. Dredged 
in Bantry Bay. 
T. Crassa. Pen. 4. t. 48. f. 28.—Gmel. 3238,.— 
