Class VI. DONAX. WEDGE-SHELL. 199 



,in. Syst. 112?. No. IO7. 



Li7i. Tr. viii. 76. 



3. DENTICU. 



G)n. Lin. 3263. 



. Mont. Test. Br. 104. 



LATA. 



purple. 



D. of a cuneiform shape; extremely blunt at 

 one end, striated like D. trwiculus, serrated at 

 the edges; color within purple; transversely 

 tinged with the same on the outside. Breadth 

 a little superior to D. trimculus. Tab. Iviii. 



.fig' 2^ , . , .. 



Lin. Tr. viii. 76. Mont. Test. Br. IO7. 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. CASTANEA. 



Sup. t. 17. /. 2. 



* D, with an ovate smooth shell, transverse worn 

 wrinkles, M'ith two hinge-teeth in each valve, 

 one very large, the other small ; length a quarter 

 of an inch, breadth three-eighths. 



Discovered by My. Montagu in St. Austle 



bay 



