11 



XVTI. CARYCHIUM. SEDGE-SHELL. 



So called from its habitat among wet leaves, grass, 

 and other moist matters. 



77. Carychium minimum. Minute Sedge-shell. 



XVIII. PUPA. CHRYSALIS-SHELL. 



So called from the resemblance to the Pupa or 

 Chrysalis of an insect. 



78. Pupa umbilicata. UmhiUcate Chrysalis- shell. 



79. Pupa marginata. Margined Chrysalis-shell. 



80. Pupa edentula. Toothless Chrysalis-shell. 



XIX. VERTIGO. WHIRL-SHELL. 



So named from the abrupt twist of the volutions. 



81. Vertigo Secale. Juniper Whirl-shell. 



82. Vertigo Anglica. English Whirl-shell. 



83. Vertigo pygmasa. Pigmy JFhirl-shell. 



84. Vertigo sexdentata. Six-toothed Whirl-shell. 



85. Vertigo pakistris. Marslt Whirl-shell. 



SQ. Vertigo heterostropha. Wry-mouth Whirl-shell. 



