Vlll THE NAUTILUS. 



Pholas truncatus in Salem Harbor ..... 8 



Physa compacta Pease from Hawaii . . . . .106 



Physa gyrina Say . . . . . . . .17 



Planorbis parvus Walkeri Vanatta, n. var. . . . .58 



Pleurodonte anomala Pfr., P. atavus Sp. .... 1-3 



Pleurodonte bronni Pfr., P. browneaua Pfr. . . . 1-4 



Pleurodonte invalida Ads. ....... 1-3 



Pleurodonte lindsleyana Chitty ...... 1-3 



Pleurodonte okeniana Pfr. ....... 1-3 



Pleurodonte pallescens Pfr., P. peracutissima Ads., P. pic- 



turata Ads. ......... 1-4 



Pleurodonte schroeteriana Pfr., P. simpson Pfr. . . . 1-4 



Pleurodonte sinuata Mull., P. sinuosa Fer. .... 1-4 



Pleurodonte sinuata group, notes on the distribution . . 1 

 Pleurodonte sloaneana Sh., P. soror Fer.. P. strangulata 



Ads. .......... 1-4 



Pleurodonte tridentina Fer. . . . . . 1, 2, 4 



Pleurodonte valida Ads. . . . . . . .1,2 



Pleurotoma (Drillia) caseyi Aldr., n. sp. (PI. Ill, f. 1, 2) . 97 

 Pleurotoma weldiana T. Wood = Drillia fucata Rve. . . 49 

 Polygyra alabamensis Pils. , n. sp. . . . . .30 



Polygyra profunda, reversed . . . . . .119 



Polygyra texasensis Pils., n. sp. . . . . . .31 



Prime, Temple . . 138 



Pruvotina Ckll., n. n., for the typical Paramenia Pruvot . 118 

 Ptereulima elegans Casey, n. gen. and sp. (fig.) . . .18 

 Publications received . . . .22, 33, 60, 107, 120, 139 

 Puncturn conspectum Bid. ....... 133 



Punctum morseanum Pils., n. sp. 5 



Pupisoma japonicum Pils., n. sp. . . . . .21 



Pyramidula conica Pils. & Hir., n. sp. .... 77 



Pyramidula elrodi and Helix var. circumcarinata . . 61 

 Pyramidula elrodi and Epiphragmophora circumcarinata, 62, 83 

 Pyramidula elrodi, notes on (illustrated) . . . 109, 144 

 Pyramidula pauper var. hachijoensis Pils., n. var. . . 56 

 Pyramidula strigosa concentrica in Colorado . . .106 

 Quadrula andrewsae Marsh, n. sp. (PI. I) . . . .8 



Quadrula beauchampii Marsh, n. sp. (PI. I) ... 7 

 Quadrula trapezoides var. pentagonoides Frierson, n. v. , 39, 40 



