66 



The shells assembled under the title of BuUia by Mr. Gray, are deserv- 

 ing of generic distinction, not only on account of their peculiar affinity of 

 form and colom', but because of the curious expanded structure of the 

 animal-disc, as represented by M. M. Quoy and Gaimard in their figure of 

 the Buccinum IcBvissimum of Lamarclc^ The Buccmum cocJdidium of 

 Chemnitz is the largest and most conspicuous of the group, wliilst the 

 B. anmdatum of Lamarck, is characteristic of the Terebra-Kke portion of 

 the species. 



Mr. Gray notices in his observations on this genust, that the Bullm "are 

 found crawling on the sand in bays ; they generally remain at the bottom 

 of the water, and are easily caught alive with a bit of meat tied at the end 

 of a string, as they immediately attach themselves to it. " 



In confirmation of the importance of this genus, it only remains to notice 

 that M. Deshayes proposes to remove those species hitherto arranged under 

 the head of Buecimim, to a place amongst the Nassce, to wliich they are 

 apparently still more remotely allied. 



1. achatina. 



2. annulata. 



3. armata. 



4. cochlidium. 



5. globulosa. 



6. granulosa. 



SpeciesX • 



7. hastata. 



8. laevigata. 



9. laevis. 



10. laevissima. 



11. lineolata. 



12. Mauxitiana. 



13. Paytense. 



14. poUta. 



15. semiplicata. 



16. terebralis. 



17. turrita. 



18. vittata. 



Genus 10. PHOS, De Montford. 



Animal; disc ohlong, expanded, carrying a small liorny oper- 



ctdum, head small, tentacles high up, very long, slender, eyes 



situated at the tips of the tentacles. 

 Shell ; oblong, mostly acuminated, and longitudinally ribbed, outer 



lip notched toioards the base; columella somewhat ohsoletcly 



one-plaited. 



The Buccinum senticosum Linnaeus, Cancellaria senticosa Lamarck, was 

 figured by De Montford in liis ' Conchy liologie Systematique ' as the type of 

 a new genus, under the laconic title of Blios ; and it is one of the few 

 genera introduced by that author, the propriety of which has been con- 

 firmed by subsequent discoveries. The species above referred to, is not, 



* Voyage de I'Astrolabe. f Zoology of Beechey's Voyage. 



X A monograioli of this genus will shortly appear in the ' Conchologia Iconiea '; I can give 

 but an undigested list of species at present, and refrain from attaching any authorities. 



