THE NAUTILUS. 



IX 



Rissoa kelseyi Dall and Bartsch, n. sp. . . . . 94 



Rissoina bakeri Bartsch, n. sp. ...... 9 



Semele werburtoni T. Wood = Codakia orbicularis L. . 49 

 Siiell-bearino- mollusca of Rhode Island . . . .16 



Shells of Calhoun Falls, South Carolina .... 125 



Shells collected on Cliff Island, Casco Bay, Maine . .119 

 Shells collected on San Martins Island, L. California, Mex. 40 

 Shell collecting on the Mississippi ..... 102 



Shells collected in the Sacramento Mts., New Mexico . . 57 

 Shells from Xorth Carolina, notes on some .... 106 



Sitala latissiraa Pils., n. sp. . . . . . . .56 



Slugs as medicine ........ 84 



Sonorella granulatissima Pils., n. sp. . . . . . 32 



Sphaerium deformis H. F. Carpenter . . . . .84 



Sphyradium edentula Drap. in Eastern Asia . . .75 

 Tasmanian and West Indian Concholog3% notes on . . 49 

 Tertiary mollusca from Alabama, Mississippi and Florida, 

 new ........... 97 



Tornatellina biplicata Pils., n. sp. . . . . . 57 



Trishoplita lischkeana var. hizenensis Pils. & Hir., n, var. , 135 

 Trishoplita mesogonia var. shikokuensis Pils. & Hir., n. var. 135 

 Tritonia palmeri Cooper, note on . . , . .117 



Trivia atomaria Dall, n. sp. . . . . . .43 



Trivia panamensis Dall, n. sp. . . . . . .43 



Unio from Tennessee, description of a new (Plate I) . ,7 

 Unionidae in Texas and Louisiana, collecting . . .37 

 Unio popeii Lea, in New Mexico . . . . .69 



Veronicella sloanei Cur., as medicine . . . . .84 



Verticordiadalliana Aldr., n. sp. (PL lY, f. 8) . . .100 



Verticordia quadrangularis Aldr., n. sp. (PI. IV, f. 22, 23) . 101 

 Verticojdia sotoensis Aldr., n. sp. (PI. lY, f. 19-21) . . 100 



Yertigo coloradensis and Y. ingersolli . . . • , ^^ 



Yitrea draparnaldi Beck in Washington, D. C. . . .94 



Wetherby, Albert G. (portrait) 10 



Zonitoides arboreus in Japan . . . . . .119 



Zonitoides subarboreus Pils., n. sp. . . . . .54 



