74 



6. P. nob ile, Lea. 

 lo nobilis, Lea, Adams' Genera i. p. 299. 



8. P. canaliculatum, Say. 



lo canaliculate, Say, Morch, Yoldi, Cat. p. 56. 



Ceriphasia canaliculata, Say, Adams' Genera i. p. 297. 



Mdania cornea, Say, Sowerby, Mollusca, Fauna Boreali Ameiicana, iii. p. 



316, 1836. 



Gyrotoma conica, Say, Adams' Genera i p. 305. 

 Mdania Sayi, Deshayes, Encyc. Meth. Vers. ii. p. 427, 1830. 



9. P. filum, Lea. 



Elimiajilum, Lea, Adams' Genera i. p. 300. 



11. P. oli vaceu m, Lea. 

 This species should follow No. 21. 



16a. P. trivittatum, Lea.* 

 Synonymy, Part 1st, No. 79. 



17. P. fastigiatum, Anthony. 

 Synonymy, Part 1st, No. 44. 



28. P. unciale, Haldeman. 



P. unciale, Hald , Synonymy, Part 1st, No. 67. 

 P. bicostatum &nd riyidum, Anth., ibid. No. 28. 

 P. sugillatum, Reeve, ibid. No. 68. 

 G. oblita, Lea, Synonymy, Part 2, No. 126. 



29. P. subulare, Lea. 



Ceriphasia subularis, Lea, Adams' Genera i. p. 297. 



29a. P. intensum, Anthony. 

 Melania intensa, Anthony, Reeve, Monog. sp. 371. Brot, List, p. 30. 



33. P. annuliferum, Conrad. 



Melania annulifera, Conr., Miiller, Synopsis, p. 44. 

 Ceriphasia annulifera, Conr., Adams : Genera i. p. 297. 

 Ceriphasia Ordiana, Lea, ibid. p. 297. 



38. P. elevatum, Say. 



Elimia elevata, Lea, Adams' Genera i. p. 300. 



Ceriphasia elongata, Lea, ibid. p. 297, not Ceriph. elevata, Say, of Chenu, 

 Man. i. f. 1961. 



40. P. a r a t u m, Lea. 



Ceriphasia exarata, Lea, Adams' Genera i. p. 297. 



44. P. fastigiatum, Anthony. 

 Should be No. 17a. 



49. P. pyrene Hum, Conrad. 



Melania pyrenella, Conrad, Miiller, Synopsis, p. 45. 



51. P. regular e, Lea. 



Ceriphasia regularis, Lea, Adams' Genera i. p. 297. 



55. P. labiatum, Lea. 

 55a. P. pallid urn, Lea.f 

 .57. P. vest itum, Conrad. t 



* Perhaps = Thwntonii. 



f After a thorough examination of the specimens of labiatum and pattidum, I incline to the be- 

 lief that they are distinct. 

 J G. spinalis, Lea, may be identical with this species. 



