NORTH BRITISH TESTACEA. 



399 



BUCCINUM. 



4, reticulatum. 



5. bilineatum. 

 decussatum, 



6. minimum. 



7. terrestre. 



8. perdix. 



P. D. M. Dunbar, the smaller variety. 



M. Two specimens of this very 



P. rare shell have been met 



with by the dredge in the 

 Frith. 



M. Dunbar, scarce. 



M. Dunbar, sparingly. 



M. Received among a collection 

 of shells from the shore of 

 Jura. A very small spe- 

 cimen. 



STROMBUS. 



Animal a Limax. Shell univalve, spiral. Aper- 

 ture much dilated ; the lip expanding, and pro- 

 duced into a groove, leaning to the left. 



J. pes pelecani. P. D. M. Dredged in Leith Roads; not 



uncommon on the sandy 

 shore of Aberlady Bay. 



Q. costatus. ? M. D. On the rocks at the Nuns' 

 turboformis. t M. Island, Sound of Iona. 



■ MI J REX. 



Animal a Limax. Shell univalve, spiral, rough 

 with membranaceous sutures. Aperture oval, 

 ending in an entire strait or slightly ascending 

 canal. 



