117 



seems natural to conclude that the animal of the former must be of a much 

 more sluggish habit and muscular growth than that of the latter. The 

 Fasciolarue, again, are peculiar in their size and appearance, and may be 

 identified by their style of painting, the striae of the aperture for example, 

 as if there were some curious concordance in the distribution of the colouring 

 matter from the calcifying glands of the mantle. 



If any subdivision of the genus Fusus be admitted, it may be made in 

 favour of that group wliich includes the F. despectus, antiqnus, and forni- 

 catus ; these do not, however, appear to have that close affinity with the 

 common Whelk of our shores, Buccinum undatum, as observed by Muller, 

 who has brought them together into his genus Tritonium. The F. Nifat, 

 biiccinatiis, and aculeiformis have also a character peculiar to them. 



The long Spindle-shaped Fusi are of an exceedingly graceful and delicate 

 structure, and this, it may be presumed, the great Author of their existence 

 intended should compensate for the absence of bright colours or variety of 

 sculpture; all being merely more or less tinged with rust-brown, and 

 strongly or faintly keeled and nodulous. One Spindle-shaped species is 

 nevertheless distinguished^ as an exception by the pre-eminent beauty of 

 its structure, in having each whorl surmounted by a diadem of erect, com- 

 pressed scales.^ 



The elongated Fusi are principally from the Eastern Seas, China, and 

 New Holland ; the ovate species are from a colder region, and mostly 

 European. 



1. acus, Adams ^^ Reeve. 



2. Afer, Lam. 



3. alteraatus, Phil. 



4. angiilatus, Gray. 



5. antiquus, Lam. 



6. aureus, Reeve. 



7. austrahs, Quoy. 



8. Bamffius, Brown. 



9. Beckii, Reeve. 



10. Blainvillii, Marav. 



11. BlosviUei, Besh. 



12. brevicaudata, id. 



13. buxeus, Reeve. 



14. cselatus, id. 



15. Cancellarioides, id. 

 16 cancellatus, id. 



Species. 



17. candelabrum, A.^ R. 



18. cinereus, Say. 



19. cinnamomeus, Reeve. 



20. clatlu'atus, id. 



21. clausicaudatus. Hinds. 



22. colosseus, Lam. 



23. colus, id. 



24. coutrarius, id. 



25. corallinus (Mur.) Scac. 



26. corneus, Besk. 



27. costatus, Pennant. 



28. craticulatus, Be Plain. 



29. crebricostatus, Lam. 



30. crebiilu-atus, Reeve. 



31. cretaceus, id. 



32. Cumingii, Jonas. 



33. deformis, Reeve. 



34. despectus, Lam. 



35. dilatatus, Quoy.^-'Gaim. 



36. distans, Lam. 



37. Dupetit-Thouarsii,X2V. 



38. exilis, Menke. 



39. ficula. Reeve. 



40. Pontainei, B'Orb. 



41. fornicatus, Gray. 



42. fragosus, Reeve. 



43. funicidatus, Lesson, 



44. Geversianus, Besh. 



45. gradatus, Reeve. 



46. graciUimus, A. §' R. 



47. lieptagonaUs, Reeve. 



48. iucrassatus, Lam. 



* Fusus pagodus. Lesson, of which a magnificent specimen, collected by Captain Sir Edward 

 Belcher during the voyage of HM.S. Samarang, in the Straits of Korea, is figui'ed in ' Conch. 

 Icouica,' Fusus, pi. viii. f. 32. 



