169 



42. P. Tayloriana, Ch. 45. P. Grevillcana, Ch. 



43. P. Stricklandiana, Ch. 46. P. Carpenteriana, Ch. 



44. P. Stokesiana, CA. 47. P. (? Lewisia)Barromana,C^. 



Gen. LiNDSLEYA, Chitty. 



48. L. Lindsleyana, Ad. 61. L. Gaskoiniana, Ch. 



49. L. Pickeringiana, Ch. 62. L. Newcombiana, Ch. 



50. L. Redfieldiaua, Ad. 63. L. Riisseana, Ch. 



51. L. Jayana, Ad. 64. L. Poeyana, Ch. 



52. L. Leana, Ad. 65. L. Henryana, Ch. 



53. L. Denisoniana, Ch. 66. L. Alderiana, Ch. 



54. L. Polyblankiana, Ch. 67. L. Bridgesiana, Ch. 



55. L. Albersiana, Ch. 68. L. Salleana, Ch. 



56. L. Fischeriana, Ch. 69. L. Arthuriana, Ch. 



57. L. Moricandiana, Ad. 70. L. Gutiereziana, Ch. 



58. L. Reeveana, Ch. 71. L. Oweniana, Ch. 



59. L. Shuttleworthiana, Ch. 72. L. Wollastoniaua, Ch. 



60. L. Boissieriana, Ch. 



Gen. Blandia, Chitty. 



73. B. Blaudiana, Ad. 78. B. HilHana, Ch. 



74. B. Jeffreysiana, Ch. 79. B. TraUliana, Ch. 



75. B. Bairdiana, Ch. 80. B. Lukesiana, Ch. 



76. B. MacGillivrayana, Ch. 81. B. Loweana, Ch. 



77. B. Troscheliana, Ch. 



Genus I. Lewisia, Chitty. 



Quasi double-mouthed. 



Lewisia Agassiziana, Chitty. See Stoastoma Agassizianum, 

 Ad. Cont. Conch. p. 158 ; Cat. Phan. p. 234. 



The habitat of this shell is near Ackendown, "Westmoreland. The 

 " deposit," of which Adams speaks, is still remaining in one of my 

 specimens (the origirial type), and beyond a doubt is the operculum, 

 likę many others I shall describe. It is so fixed in the aperture, 

 that I will not risk its breakage in removal, and so I cannot fully 

 describe it. It is excessively concave in its centre, continued on the 

 labial side in a long, broad, sraooth, shining convex plate, shaped 

 likę a tongue, and extending almost and sinking into the opposite 

 extreme of " the spirai lamella excessively developed and soldered," 

 &c., as described by Adams. 



Lewisia Philippiana, Chitty. See Stoastoma Philippianum, 

 Ad. Cont. Conch. p. 158; Cat. Phan. p. 235. 



Operculum, still ? 



Hab. Burnt Hill, near Ackendown, Westmoreland, non Acken- 

 down. 



