— 161 — 
The Nautilus, à monthly devoted to the interests of Con- 
chologists. Editors: H. A. Pilsbry and C. W. Johnson. 
Vol. XXII, n° 11, March 1909. 
Contents : H. W. Winkcev. Pisidiuwm in Massachusetts. — 
H. A. PrzsBry and GEo. H. CLaPp. Notes on Shells ce: llected at 
Balsas, Guerrero, Mexico, by Mr. Walter E. Koch, in dec. 1908 
[Holospira Bartschi un. sp.] (PI. VII, fig. 5-6). — Wm. H. DaLc. 
A New Species of Pholadomya [P. pacifica m. sp., N. W. Pacific]. 
— H,. H. Suiru. The Showalter Collection. — L. E. DANiFLs. 
Records of Minnesota Mollusks. — H 1. PREsroN. Two New 
Varielies of Cypræa from N. E Queensland [C. ranthodon Gr. 
var carnicolor m. vax., C. miliaris Gmel. var. nirea mn. van.|. 
— Notes: L. A. KEENE, Pearl-hunting in the Fox River, Illi- 
nois ; — BrRyANT WaALker, Planorbis bicarinautus. — Obituary : 
David W. Ferguson ; D' Lorenzo G. Yates. 
HOPÆEXII; n°12, April 4909: 
Contents: Wm. H. Dazr. Some Notes on Cypræa of the 
Pacific Coast [C. annettæ w. mom. — C. Sowerbyi Kiener, 1845, 
non Anton, 1839, nec Gray, 1832]. -- W. Srerki. Bifidaria bila 
mellata Sterki and Clapp mn. sp. [Arizona]. — MAXWELL SMITH. 
A Sicilian Collection. — C. W. Gripr. Dredging off San Die20, 
California. — H. A Picspry. New Mollusks collected by Mr. A. 
A. Hinkley in San Luis Potosi, Mexico [Cælocentrum Hinkleyi, 
C. ischnostele nn. spp.]. — Fr. C. Baker. A New Species of 
Lymmæa |L. Hendersoni mn. sp., Colorado]. — V. Srerki. Sphæ- 
rium Pilsbryanum m. sp., pleistocene, Utah]. — Notes: Wu. H. 
Dar, Note on Pholadomya pacifica Dall; — O0. 0. NYLANDER, 
Shells of Aroostook County, Maine. 
Nachrichtsblatt der deutschen Malacozoologis- 
chen Gesellschaft. Redigiert von D' W. Robelt. 
41 ter Jahrgang, n° 1, Januar 1909. 
CAES. R. BorrTrGer. Ein Beitrag zur Erforschung der curo- 
päischen Heliciden. — 0. Bogrr@er. Nachtrag zu « Die fossilen 
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