2i4 WORMS. TESTACEA. 61. Donax, 



Scortum. Shell triangular heart-fhaped, with a flat frontal margin. 



Lifter tab tfj-fig 220. Argennj. Conh. tab, 21 »L. 



Knorr Vergn. 6. tab. J. fig- J. E. 



Bom Muf C<ef. Vind. tefl. tab. 4. fig. I, 2 # 



Chemn. cone. 6. tab, i^.ficr. 242 — 247. 



Inhabits the Indian Ocean; cinereous mixed here and there with 

 violet, within fnowy except near the hinge which is violet: 

 marginal teeth double in each valve with an intermediate ca- 

 vity. 



fubefcenu Shell ciliate with fpines on the frontal margin* 

 Bar but. tab. ^fig I Rumpf Muf. tab. 42. F. 

 J f Chemn % cone fat ab 25. jig. 248. 



Inhabits the Indian Ocean; refembles the laft on the infide, but 

 on the outfide is vvhitifh with fine decuiTate itrLe : fore-margin 

 flat with an ovate gape ; behind the-beaks an ovate oblong 

 • depreiTure. 



Pwgofa, Shell wrinkled and gibbous before, withcrenate margins. 



Lifer, tab. 375. Adcins. Seng. tab. 1%-fg. I. 



Bonan,recr. 2. tab, 37, 38. Muf kirch. 2 fig. 36, 37. 



Gualt. test, tab. 89. F. Argennj, Conch' tab. 22. L. 



Klein ostrac, tab. 1 1 -fig- 6 1 , 



Seba Muf 3. tab. 86. fig. IO, II. 



Chemn. cone. 6. tab. 25. fig, 250 — 252, 



Schrcet. Journ. 2, tab. 2. fg. 9. 



Inhabits the Mediterranean Atlantic and American Seas : general'y 

 I of an inch long and \ broad : marked with various colours, 

 and frequently banded, within violet and white: marginal 

 tooth o. 



* Trunculus Shell fmooth in front, within violet, the margins crenate. 

 Donovan's Brit Shells, I. tab. 29. fg. 1. 

 Pennant Brit. Zool. iv. tab. 55. fg. 4.5. 

 Lister Conch, tab. 376. An, Angl. tab. 5. fig. J £2 

 Adans Senegita^^. fg. 2. <&ualt.test. tab. 88. Q 

 Bonan. rhr. 2. fg. 47. Muf kirch. 2,fg. 48, 

 Knorr Pergn. 1. tab. J. fig. 7. Barbut. t, \,f. 3. 

 Born, Muf. Caf. Find. teji. tab, 4. fg. 3, 4. 

 Chemn, cone. 6. tab. 26. fig. 253, 254. 



Inhabits European Coasts : whitifh with a yellow tinge and marked 



with brown and purple bands, elegantly ftriate longitudinally, 



' varies in its colour: fomething more than an inch brqad. 



Striata, Shell very obtufe before and every where ftriate, the margin 

 denticulate. 

 Inhabits Southern Europe, Knorr. Ver^n. 6. lab* 28. fig. 8, 

 Shell white and rather gibbous. 



* Den 



