XL CLAUSILIA. CLOSE-SHELL, 



So called because the aperture is closed internally 

 by a spiral lid. 



53. Clausilia iaminata. Laminated Close-shell. 



54. Clausilia plicatula. Plaited Close-shell. 



55. Clausilia biplicata. Folded Close-shell. 



56. Clausilia bidens. Bident Close-shell. 



57. Clausilia labiata. White-lipped Close-shell. 



58. Clausilia rugosa. DarTc Close-shell. 



59. Clausilia parvula. Smaller Close-shell. 



XII. BULIMUS. TWIST-SHELL. 



Probably so named from their eagerness to feed on 

 vegetable substances. 



60. Bulimus decoUatus. Truncated Twist- shell. 



61. Bulimus Clavulus. Spike Twist-shell. 



62. Bulimus montanus. Wiltshire Twist-shell. 



63. Bulimus obscurus. Dusky Twist-shell. 



64. Bulimus tuberculatus. Tuhercled Twist-shell. 



65. Bulimus lubricus. Varnished Twist-shell. 



66. Bulimus lineatus. Lineated Twist-shell. 



67. Bulimus fasciatus. Banded Twist-shell. 



68. Bulimus articulatus. Chain Twist-shell. 



69. Bulimus ventricosus. Inflated Twist-shell. 



