109 



Species. 



1. acuminata, Soiv. 



2. albida, Hinds. 



3. antiquata, id. 



4. articiilaris, Sotv. 



5. asperella, Lam. 



6. asperula, Desk. 



7. australis, Sow. 



8. bicolor, Hinds. 



9. bifasciata, i)esA. 



10. brevis, Sow. 



11. Buccinoides, ?W. 



12. bulbulus, id. 



13. buUata, id. 



14. cancellata, Za?w. 



15. Candida, Sow. 



16. Cassidiformis, z<:?. 



17. clirysostoma, id. 



18. clavatula, id. 



19. contabulata, ^"(/. 



20. corrugata, Hinds. 



21. costata, GVaj,^. 



22. costifera, Soto. 



23. Courtboujri, Jay. 



24. crenata, Hinds. 



25. crenifera, ASb«<7. 



26. crispa, z<:?. 



27. decussata, Sow. 



28. elata, Hinds. 



29. funiculata, e'c?. 



30. gemmiilata. Sow. 



31. goniostoma, e</. 



32. granosa, id. 



33. hemastoma, id. 



34. imperiabs, ilizc/^ 



35. indentata, Sow. 



36. lactea, i)es/<. 



37. lameUosa, Hinds. 



38. laevigata, Sow. 



39. Littorinseformis, «W. 



40. Mitrasfonnis, id. 



41. multiplicata, iess. 



42. nassa, Roissy. 



43. nodulifera, Soto. 



44. nodulosa, Zam. 



45. obesa, Sow. 



46. obUquata, i«m. 



47. obtusa, BesJt. 



48. ovata, Sow. 



49. piscatoria, «rt'. 



50. pulclii'a, id. 



51. Purpurseformis, F«Zt^y^ 



52. pusilla, Sow. 



53. reticulata, Lam. 



54. rigida, -Sow. 



55. rugosa, Lam. 



56. Scalariformis, /6?. 



57. scalaiina, id. 



58. scalata, -Sc/w. 



59. simUis, id. 



60. solida, id. 



61. Splengleriana, i)^.s7/. 



62. spirata. Lam. 



63. tesseUata, >Sbw. 



64. textilis, Kiener. 



65. trigonostoma. Desk. 



66. Tritonis, /Sbw. 



67. tuberculosa, id. 



68. uniplicata, e'c?. 



69. urceolaria. Hinds. 



70. ventricosa, id. 



7 1 . Verreauxii, Kiener. 



Figure. 



Cancellaria Tritonis. PI. 10. Fig. 47. Shell showing the aperture 

 and strongly plaited columella. — Frow. Mr. Cuming's collection. 



timid, aud, retiring into its shell upon the least movement, re-appears cautionsly : differing ma- 

 terially in its mode of progression from the Buccina, which exhibit more activity. With these 

 characters the genus Cancellaria cannot be allowed to remain in the vicinity of the Volutes and 

 Mitres ; it is known that these are extremely voracious, being provided with a long tmuk by the 

 aid of which they attack and suck the juices of the animal selected for prey. Although the 

 absence of an operculum is a negative character of some value, it is not one to be relied on ; 

 the Tuns and Harps, for example, are not provided with any opercidum, whilst the Helmets and 

 Buccina, to which they are intimately aUied, are in no instance without one. Notwitstanding 

 our knowledge of the animal of Cancellaria, therefore, the place which ft should occupy in the 

 system is still uncertain, nor can it be determined until we are more fully acquainted with its 

 internal structure, its respiratory and organs of circulation ; until, in short, a full comparison of 

 its organization has been instituted. If, as I believe, the Cancellarice feed only on vegetable 

 matter, it is evident they can no longer be arranged wth the Fusi and Turbinella ; and it is not 

 improbable that the opinion which I deliverd some time since in the ' Encyclopedic ' — that the 

 CanceUaritB approximate rather] to Lamarck's famOy 'Les Plicaces', will be found nearer the 

 truth than any which has been adopted. — Deshayes, J?tim. sans vert. vol. ix. p. 399, 400. 



