(214 WORMS. TESTACEA. 6:. Donax. 
Scortwm,. — Shell triangular heart-fhaped, with a flat frontal margin. 
Lifer tab 377. fig 220. Argeny. Conb. tab, 21. L. 
Knorr Vergn. 6. tab. 7. sig. 7. E. 
Born Muf. Caf. Vind. tef. tab. 4. fig. 1,25 
C besn. conc. G. tab, 25. fig. 242—247. 
Inhabits the Indiax Ocean; cinereous mixed here and there with 
violet, within fínowy except near the hinge which is violet: 
marginal tze/8 double in each valve with an intermediate ca- 
vity. 
Pubsfeensi Shell ciliate with fpines on the frontal margin, 
Barbut. tab. 4. fig. 3. Rumpf. Muf. tab. 42. F. 
CLemn,conc. tab. 25. rig. 248. 
Inhabits the Jndiar Ocean; refembles the laft on the infide, but 
on the outfide is whitifh with fine decuffate frie : fore-margin 
flat with an ovate gape; behind the beaks aa ovate’ oblong 
depreffure, 
Rugoja Shell wrinkled and gibbous before, with crenate miar ins, 
Lifter. tab. 375. Adans. Seng. tab. 18. fig. 1. 
Bonan«recr. 2. tab. 37,38. Muf. kirch 2 fig. 36, 37- 
Guait. test, tab. 89. F. Argenv. Conch: tab. 22, L 
Klein ostrac, tab. AY. fig. 619 
Seba Muf. 5. tab. 86. fig. 10, 11. 
Chemn. conc. 6. tab, 25. fig. 250—252, 
Schrat. Tourn. 2. tah. 2. fig. 9: 
Inhabits the Mediterranean Atlantic and American Seas: gencral'y 
à of an inch long and £ broad : marked with various colours, 
and frequently banded, within violet and white; marginal 
tsotb o, 
¢ Truuculus Shell fmooth in front, within violet, the margins crenate. 
Donovan! s Brit Shells, 1. tab. 29. fig. Y. 
Pennant Brit. Zool, iv. tab. 55. fig. 45. 
Lister Conch. tab, 376, An. Angl. tab. 5. fig. 353 
Adans Seneg. tab. 18- fig. 2. Gualt. test. tab. 88. 
Bonan. recr. 2. fig. 47. Muf kirch. 2, fig. 48, 
Knorr Vergn. 1. tab. 7. fig. 7. Barbut. 1. 4.f. 8» 
Born. Muf. Ceef. Vind. teft. tab. 4. fg. 3, 4. 
Chema . conc. 6. tab. 26. fig. 253, 284. 
Inhabits European Coasts: whitish with a yellow tinge and marked 
with brown and purple bands, elegantly ftriate longitudinally, 
varies in its colour: fomething more than an inch broad. 
éiriata. Shell very obtufe before and every where ftriate, the margin 
denticulate, 
Inhabits Southern Europe. — Knorr. Vergu. 6. tab, 28. fig. 8. 
Shell white and rather gibbous, 
* Den 
