VI THE NAUTILUS. 



Kentucky, Mollusca of southern. . 75 



Lampsilis simpsoni Ferris, n. sp. (Arkansas) 38 

 Land shells from rejactamenta of the Rio Grande at Mesilla, 



N. Mex. and of Gallinas R, at Las Vegas, N. Mex. . 9 

 Lassea rubra Montg. and L. bermudensis Bush, the same 



species 106 



Las Vegas, N. Mex., Shells of ... 47 



Lima hamlini Dall, n. sp. (cretaceous, see page 36) . . 15 



Limicolaria oviformis Ancey, A new Asiatic species . . 42 



Limnaea mighelsi W. G. Binn. Note on the habits of . 8 



Limpet, Note on a new abyssal ..... 48, 60 



Los Angeles, Cal., Age of deposit underlying . . .36 



Mazatlania Dall, proposed for Euryta A. Adams 1858 not 



of Gistel 1848 .44 



Mitrularia Schum, 1817 = Cheilea Modeer, 1793 . . 45 



Mollusks in grass . 93 



Murex petra Dall. A new Murex from California . 37 



Naiades, a review of Simpson's Synopsis . . 130 



Names which must be discarded (Dall.) . 44 



New Mexican snails, new records of . . 82, 85 



Odostomia, variation in .... . 126 



Omphalina Isevigata latior Pils., n. var. . 56 



Omphalina Itevigata perlaevis Pils., n. var 56 



Pecten (Lyropecten) dilleri Dall, n. sp. (fossil) . . .117 



Phenacolepas, catalogue of species of the genus . . 61 



Philomycus secretus Cockerell, n. sp. . . . . 59 



Phyllaphysia, a genus new to the Pacific Coast . . .91 



Phyllaph^ysia taylori Dall., n. sp. . 92 



Physae of Northeastern Illinois, a revision of the . 16 



Phj^sa ancillaria var. magnalacustris Walker, n. var. . . 97 



Physa ancillaria var. crassa Walker, n. var. . 98 



Physa gyrina Say . . 19 



Physa gyrina elliptica Lea . . .23 



Physa heterostropha Say . . 17 



Physa Integra Hald. . 23 



Physa moussoni Ancey, n. sp. . .84 



Physa sayii Tappan . 18 



Pinna from California, a new . .143 



Pisidia, some general notes on .5, 6 



