240 
Difcorse 
WORMS. TESTACEA, 62. Venus. 
Shell orbicular, a little convex ; with longitudinal {triz, the 
middle ones perpendicular, thé outer ones oblique 
divergent and crotfed by tranfverfe ones, the interme- 
diate grooves and inner margin crenate. 
Inhabits Schret. Eirl. in conch. 3. tab. 8. figs 11. 
Shell inequilateral: whitifh or ochraceous, with a few undulate 
{trie or rays, fometimes marked with a few brown {pots and 
clouds, within white: poftzrior flope oblong- heart-ihaped ; 
anterior flope narrow oblong brown, the lips cancellate white 
with black lines. 
Aculeata. Shetl orbicular fubequilateral, with elevated acute tuber. 
culate ribs: margin denticulate and crenate: hinge 
with 2 middle teeth. 
Inhabits Schrat. Einl. in conch. 3. tad. 8. fig. 15. 
Shell rarely of one colour refembling the bloffoms of the peach 
tree, generally white ftriate with brown: the grooves deep. 
C. Oval a little angular near the beaks. 
*Litterata, Shell ovate, a little angular before; with ntimerons fubun- 
dulate tranfverfe {triz. 
Pennant Brit. Zool. tab. 57. fige 55. 
Lifter Conch. tab. 402. fig. 246. 
Rumpf. Muf. tab. 43. B. Gualt. test. tab. 96. E, F. 
Argenv. conch, tab, 21. A. Petr. amb, tab. 18. fíz, 2. 
Bonan. retr. 2. fig. 67. Muf. Kirch. 2. fiz. 66. 120, 
. Valent abb. tab. 13. fig. 6. t. 14. f. 13. 
Knorr Vergn. 1. tab, 6. figs 4. Barbuts t. 4. f. 153 
Regenf. conch. 1. tab. 4. fig. 39. 
Chemn. conch, 7. tab, 41. fig. 432—4234* 
z. Clouded. Chemn. conch. 7. t. 41. f- 4354 
Valent. abb. t. 14. fu 10, 11, 12, 14. 
Knorr. Vergn. ©. te A4. fy 1. 
3. Dotted. Chemmn. conch. 7. tab. 41. fig. 439, 437* 
Valent. abb. t. X5. f. 19. 
4. Sprinkled. Chemn. conch. 7, tab. 42. fig. 439. 
5. Radiate. Chemn. conch. 7. tab. 42. fig. 439... 
6. Spotted. Martin. Naturg. 1. t. 12. f. 4. 
7. Valent abb. tab. 14. fig. 7—9. t. 15. f- 17, 18. 
* 8. Regenf. conch. 1. t. 4. f. 40? 
[nhabits Europe and India; 2 inches long, 2 4 broad. 
Shell thick, whitifh with zig zag lines which in the Zuropeau 
fpecimens are very faint: anterior flope long narrow deep, 
with a longifh broad fent; beaks very {mall, ' 
eGeogra- 
Dn 
