29 



65. P. Lyonii, Lea. 



Trypanostoma Lyonii, Lea, Proc. Acad. Nat. Sci., p. 155, May, 1863. 



66. P. viridulum, Anthony. 



Melania viridula, Anthony, Ann. Lye. N. Y., vi. p. 84, t. 2, f. 2, March, 

 1854. Binney, Check List, No. 293. Brot. List, p. 31. Reeve, Monog. 

 MeL, sp. 243. 



67. P. uncial e, Haldeman. 



Melania tincialis, Hald., Monog. Limniades, No. 4, p. 3 of Cover, Oct. 5, 

 1841. Jay, Cat. 4th Edit., p. 275. Binney, Check List, No. 279. Brot. 

 List, p. 37. Reeve, Monog. MeL sp. 435. 



68. P. sugil latum,* Reeve, 



Melania smjillata, Reeve, Monog. MeL, sp. 319, September, 1860. Brot. 

 List, p. 31. 



69. P. striatum, Lea. 



Trypanostoma striatum, Lea, Proc. Acad. Nat. Sci., p. 173, 1862. Jour. Acad. 



Nat. Sci., V. pt. 3, p. 294, t. 36, f. 124. Obs. ix., p. 116. 

 Trypanostoma rostfUatum, Lea, Proc. Acad. Nat. Sci., p. 272, 1862. Jour. 



Acad. Nat. Sci., v. pt. 3, p. 353, t. 39, f. 225. Obs. ix., p. 175. 



70. P. Knox vi liens e,t Lea. 



Trypanostoma Knoxvillense, Lea, Proc. Acad. Nat. Sci., p. 173, 1862. Jour. 

 Acad. Nat. Sci., v. pt. 3, p. 274, t. 36, f. 87. Obs. ix., p. 96. 



71. P. Whitei, Lea. 



Trypanostoma Whitei, Lea, Proc. Acad. Nat. Sci., p. 173, 1862. Jour. Acad. 

 Nat. Sci., V. pt. 3, p. 272, t. 36, f. 85. Obs. ix., p. 95. 



72. P. attenuatum. Lea. 



Trypanostoma attenuatum, Lea, Proc. Acad. Nat. Sci., p. 174, 1862. Jour. 

 Acad. Nat. Sci., v. pt. 3, p. 274, t. 36, f. 88. Obs. ix., p. 96. 



73. P. E St ab rookii, Lea. 



Trypanostoma Estahrookii, Lea, Proc. Acad. Nat, Sci., p. 173, 1862. Jour. 

 Acad. Nat. Sci., v. pt. 3, p. 273, t. 36, f. 86. Obs. ix., p. 95. 



74. P. modestum. Lea. 



Trypanostoma modestum. Lea, Proc. Acad. Nat, Sci., p. 174, 1862. Jour. 

 Acad. Nat. Sci., v.pt. 3, p. 276, t. 36, f. 92. Obs. ix., p. 98. 



75. P. luteum, Lea. 



Trypanostoma luteum, Lea, Proc. Acad. Nat. Sci., p. 273, 1863. Jour. Acad. 



NaL Sci., V. pt. 3. p. 350, t. 39, f. 220. Obs. ix., p. 172. 

 Trypanostoma Carolinense, Lea, Proc. Acad. Nat. Sci., p. 273, 1862, Jour. 



Acad. Nat. Sci., v. pt. 3, p. 351, t. 39, f. 221. Obs. ix., p. 173. 



76. P. curvatum, Lea. 



Melania curvata. Lea, Philos. Proc. ii., p. 243. Philos. Trans, ix., p. 28. 

 Obs. ix., p. 28. Wheatley, Cat. Shells U. S., p. 25. Brot. List, p. 

 30. Binney, Check List, No. 81. 



77. P. simplex. Lea. 



Trypanostoma simplex, Lea, Proc. Acad. Nat, Sci.. p. 174, 1862. Joiir. 

 Acad. Nat. Sci., v. pt. 3, p. 277, t. 36, f. 94. Obs. ix., p. 99. 



7€. P. bivittatum. Lea. 



Trypanostoma bivittatum, Lea, Proc. Acad. Nat. Sci., p. 175, 1862. Joxu. 

 Acad. Nat. Sci. v. pt. 3, p. 279, t. 36, f. 97. Obs. ix., p. 101. 



* This sliell appears fo be very closely Allied to ttnciah. judging from the figure, 

 t I doubt whether thie is distinct froiti' S^cdLmOttnse. 



