CONTENTS. 



DESCRIPTIONS OF NEW SPECIES. 



PAGE 



Helix Downieana Bland, 97 



" labrosa " 107 



" triodontoides " 101 



Remarks on the Following Species, viz. : 



Helix alternata Sat, 98 



" appressa " 109 



" Cumberlandiana Lea, 100 



" Edgariana " 105 



" hirsuta Sat, 104 



" inflecta " 102 



" monodon Rackett, 108 



" obstricta Sat, 115 



" palliata " 110 



" Rugeli Shcttlkwoeth, 103 



" spinosa Lea, 105 



" stenotrema Fee., 104 



" tridentata Sat, 100 



" vultuosa Gould, . ... 116 



Note on the Toothed Helices of North America, 117 



Note on Variation in Species of Helix in Eastern North America, . .123 



List of Figuree on Plate IV., 125 



