IN DFX 



TO 



THE NAUTILUS, VOL. XII 



INDEX TO TITLES AND SPECIES DESCRIBED. 



Achatinidae, note on the generic names of two groups of 92 



Amnicola missourieusis Pilsbry. n. sp . 43 

 Amuicola Walkeri Pilsbry, u. sp. 



Amnicolida?, notes on new and little known.. . . 42 

 Amnicolida? of the Western United States . - 121 



Ampullaria Pinei Dall, n. sp. . 7.i 



Anodonta imbecillis, hermaphroditic 87 



Ashrnunella Pilsbry and Cockerel!, n. gen . 107 

 Ashmuuella pseudodout-i (Dill) capitansnsis Ashmun and 



Cockerell, n. sub-sp 131 



Beddome, C. E . (Obituary) ... 8!> 



Bitidaria Ashmnni, a new species of Pupida? 49 



Bitidaria Ashmuni form minor. . 92 



Bitidaria Dilliana Sterki. n. sp ^ 



Bitidaria hordeacella Pils. var. pavvidens Sterki. n. var 128 



liitidaria perversa Sterki, n. sp. . >:) 



Bitidaria quadrideutata Sterki, n. sp. 127 



Biologia Centra li Americana. Mollusca (Review ) 11 



Care of Shells 132 



Ceres Nelsoui Dall, u. sp 27 



Cerion Fordii Pils. & Van. (Figs. ], >, ;{. 4,). 



Ceriou Pillsburyi Pils. & Van. (Fig. 5.) 



Chicago drainage canal, a day on the . . . 63 



Chitons, notes on a few "'O 



Collecting in the Great Smokies.. 97 



Collecting shells in the Klondike country 109 



Columbella avara in Brazil and Uruguay. 45 



Conchology in the Klondike 24 



Conulus chersinus dentatus Sterki .110, 131, 144 



Conulus chersinus polygyratus Pils., i\ var. 1 Ti 



Conulus chersinus (Say) 1 1 (n> 



( 'onulus chersinus trochulus (Reinhardt) . 11<> 

 Conulus tulvus alaskensis Pils., u. var. . 



Couulus fulvus mortoui ( Jeft'reys) 



(iii) 



27 



27 



