THE NAUTILUS. 



VII 



note on 



Mexico 



Pisidium imbecille Sterki, n. sr>. . 

 Pisidium monas Sterki, n. sp. 

 Pisidium peraltum Sterki, n. sp. . 

 Pisidium streatori Sterki, n. sp. . 

 Pisidium tenuissimum Sterki, n. sp. 

 Planorbis corpulentus Say, supplementary 

 Planorbis persicus Ancey, n. sp. . 

 Planorbis umbilicatellus Cockerell, in New 

 Pleurobranchus californicus Dall., n. sp. 

 Polygyra albolabris alleni . 

 Polygyra andrewsae altivaga Pils. 

 Polygyra andrewsae normalis Pils. 

 Polygyra binneyana .... 

 Polygyra edwardsi magnifumosa Pils. 

 Polygyra ferrissi .... 



Polygyra hirsuta pilula Pils. 

 Polygyra pilsbryi Ferriss, n. sp., in search 

 Polygyra stenotrema without a lip-notch 

 Pomatiopsis hirasei Pils., n. sp. . 

 Pristogloma Dall. proposed for Glomus Jeffrey si 1876, not 

 of Gistel 1848 .... 



of 



34 



Publications received . 



Punctum blandianum Pils. . 



Punctum japonicum Pils., n. sp. 



Pyramidula elrodi Pils., n. sp. . . 



Quintard, J. B. . 



Rochester, N. Y., shell collecting near 



Saxidomus of the West Coast, notes on the distribution of 



the 



Shell collecting on the Mosquito Coast 



Shells of the marl-deposits of Aroostook county 



Sistrum nicocheanum Pils., n. sp. 



Sphaerium crassum Sterki, n. sp. 



Sphaerium walkeri Sterki, n. sp. . 



Spiraculum assamense Fulton, n. sp. (Assam) 



Subemarginula } r atesi Dall, a new species from California 



Succinea campestris vagans Pils., n. var. . 



To a slug (in alcohol) ....... 



Trishoplita cretacea var. bipartita Pils.,n. var. . 



o 

 . 100 

 5 

 . 100 

 . 99 

 . 33 

 . 84 

 . 10 

 . 92 

 27,28 

 . 54 

 . 54 



26,27,28 

 . 55 



50,51,53 

 . 55 

 . 25 

 . 135 

 . 12 



. 44 



45, 94, 104, 119, 130 



. 58 



Maine, 



40 



S 



69 



I 

 94 



101 

 3 



140 



l-ll 

 87 



125 

 74 

 36 



107 



