NORTH BRITISH TESTACEA. 



401 



MUREX, 



3. purpureus* M. 



4. linearis, M. 

 elegans. J D» 



5. muricatus. M. 



6. turrictila. M. D, 



7. sinuosus. "> M. 

 emarginatus 3 D. 



8. rufus. 



9. costatus. 



1 0. gyrinus *« 



M. 



P, D. M. 

 M. 



11. gracilis. 



12. nebula. 



M. 

 M. 



has refused a very consi- 

 derable sum for it. The 

 figure, as given by Mr 

 Donovan, is from exact 

 measurement, and I can 

 bear ample justice to its 

 correctness, being well ac- 

 quainted with the shell. 



A very rare shell, dredged 

 in Leith Roads. 



Dunbar; sparingly. 



Dunbar, not common. 



Dunbar, sparingly, frequent- 

 ly of a pink colour ; more 

 common on the saady 

 shore of Aberlady Bay. 



Dunbar, very rare ; only a 

 solitary specimen has been 

 met with. 



Dunbar, and the sands near 

 Belhaven. 



Dunbar, very scarce. 



A new species. Only a 

 single specimen, in a 

 young state, has been ta- 

 ken from the Frith of 

 Forth. 



Dunbar, scarce. 



Dunbar, scarce, 



C C 



* Tab. yiu. fig. 10. 



