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REVUE 

 DES PUBLICATIONS PÉRIODIQUES 



The Journal of Conchology. Editor : J. R. Le B. 

 Tomlin. 



Vol. XVI, n° 4, August 1920. 



Contents : W. D. Roebuck. Census Authentications. — 

 A. H. Cooke. « Grouml » Clausilias. — . A. T. Hopwood. 

 Note on Convs chytreus MelivilM (PI. II). — H. C. Huggins. 

 Notes on Kentish Mollusca. — J. W. Taylor. The Land and 

 Freshwater Mollusca of Audruioq, Pas-de-Calais. — Edito- 

 rial Notes. — A. K. Lawson. Vitrea and Pyramidula dcs- 

 troyed by Ants. — R. Wingkworth. Loligo vulgaris Lam. 

 in British Waters. — J. Davy Dean. Occurrence of Physa 

 gyrina Say in Great Brifain. — H. Beeston. The non-ma- 

 rine MoMusca of Llanidudno and district. 



The IMautilus, a quarterly devoted to the interests 

 of Condhologists. Bditors : H. A. Pilsbry and C. VV. 

 Johnson. 



Vol. XXXIV, nM, July 1920. 



Contents : .Tas. H. Ferriss. The Naivajo Nation (Conclu- 

 ■ded;. — N. M. Grier. On the érosion and thickness of shells 

 of the fresh-water Musseils. — Wm. H. Dall. A new 

 Alaskan Chiton [SchizopUi.r multicolor n. sp., Bering 

 Sea]. — Geo. H. Clapp. A new sipccies of Pyramidula froin 

 Alabama [P. picto n. sp.] and notes on P. cumberlan- 

 dianu with new varieties [alubnma, colitmba nn. varr.]. — 

 Irwin Spalding. AchatinelUi hunting in Northwestern 

 Oahu. — Wm. H. Dall. Turritîdae vs. Turridse. — E. <;. 

 Vanatta. Land Shells frora Beaver County, Pennsylvania. 

 — Notes : L. E. Daniels, Shells from Jamestown, North 

 Dakota; — W. J. Crozier, Sex-correlated coloration in Chi- 

 ton tubcrcuUitus; — E. G. Vanatta. Shells of Orllando, Flo- 

 rida. 



