236 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



29. S. PAPYRACEL'S, Say. Abundant. 



30. S. PERVERSUS, L. Abundant. 



31. S. CAiucA, Gmelin. Peculiar to the east coast. Synonym, Fulgur 

 eliceans, Mont. 



32. S. CANALICULATUS, L. Peculiar to the east coast. 



Genus, CASSIDULA, Humph. 



33. C. CORONUS, Lam. Abundant on west coast and among the Keys. 



Genus, FUSUS, Brug. 



34. F. BicoLOR, Say. East coast. 



Family, Buccinid.e. 



Genus, ACUS, Humph. 



(Terebra, Lam.) 



35. Acus DiSLOCATUS, Say. Abundant. 



Genus, NASSA, Lam. 



36. 2^. viBEX, Say. 



37. N. TRiviTTATA, Say. 



38. ]S^. OBSOLETA, Say. 



39. N. LUNATA, Say. 



40. N. acuta, Su.y. 



41. N. ALBA, Say. 



The three first are abundant species. 



Genus, PURPURA, Lam. 



42. P. UNDATA, Lam. A West Indisin species, found by me among 

 the Keys. Emits an elegant coloring fluid, as well as the next species. 



43. P. DELTOiDEA, Lo.m. Same locality. 



44. P. Floridana, Con. Same locality. A large well marked species, 

 as well as the preceding ones. 



Genus, MONOCEROS, Lam. 



(LEUCOZONIA.) 



45. M. ciNGULATA, Lam. A Panama species, found by me at the 

 southern extremity of Florida. 



Genus, PLANAXIS, Lam. 



46. Planaxis V sp. indet. From the Keys. 



Genus, CASSIS, Lam. 



47. C. CAMEO, Stm. Syn., C. Madagascar ensis. Lam. Found at Tor- 

 tugas. 



48. C. TUBEROSA, L. Same locality. 



49. C. GRANULOSA, Brug. Loc, east coast. 



