CONTENTS OF VOL. VIL 



NUMBER I. 



1. Terrestrial Air-Breathing Mollusks of the Pacific 



Coast of North America. • 



PAOB 



Limacea : Arion •■ 6 



LlMAX 6 



HeLICEA : SUCCINEA 6 



Helix 7 



BULIMUS . . .24 



Achatina 26 



Auriculacea: Melampus . . . * . . . .26 



AcicuLACEA : Truncatella 28 



2. Terrestrial Air-Breathing Mollusks east of the 



Rocky Mountains. 



Limacea: Vaginulus 29 



Tebennophorus 30 



Arion 31 



LiMAX 31 



Helicea: Vitrina 32 



succinea 34 



Helix .43 



BULIMUS 125 



Mac nAMus 137 



Ac riNA 138 



Glandina 139 



Pupa 141 



Vertigo 148 



Cylindkella • . 149 



Auriculacea 152 



Melampus 156 



Alexia 172 



Blauneria 175 



Leucoxia 177 



Carychium 178 



AcicuLACEA : Truncatella 184 



Cyclostomacea : CnoxDRoroMA 190 



Helicinace.\ . . . . • . . .191 



Helicina 192 



