Class VI. DONAX. WEDGE-SHELL. i&9 



Lin. Syst. 1127- No. 107- Lin. Tr. viii. 76. 3. denticu- 



Gm. Lin. 3263. Mont. Test. Br. 104. LATA - 



purple. 



D. of a cuneiform shape; extremely blunt at 

 one end, striated like D. trunculus, serrated at 

 the edges; color within purple; transversely 

 tinged with the same on the outside. Breadth 

 a little superior to D. trunculus. Tab. lviii. 



fig- 2. 



Lin. Tr. viii. 76. Mont. Test: Br. 107- t. b.f. 2 4. plebbia. 



* D. with an ovate smooth shell ; edges entire, 

 hinge-teeth strong ; length an inch and a half, 

 breadth three quarters of an inch. 



Weymouth. 



Lin. Tr. viii. 77. Mont. Test. Br. 573. id. 5. CASTAITEA, 



Sup. t. 17./. 2. 



# D. with an ovate smooth shell, transverse worn 

 wrinkles, with two hinge-teeth in each valve, 

 one very large, the other small ; length a quarter 

 of an inch, breadth three-eighths. 



Discovered by Mr. Montagu in St. Austle 

 bay. 



