6o JOOKNAL OF CONCIIOLOGY. VOL. 12, NO. 2, AI'RIL, I907. 



of wliich are unrepresented in ihe area under discussion. In a later paper in 

 ' Nautilus ' some of these terms have been modified and it is not impossible further 

 changes will yet have to be made ere the classification of these groups is settled. This 

 is not the time or place to cross swords with Dr. Dall over questions of nomencla- 

 ture ; but the remark may be permitted that, to this writer, some of the changes 

 proposed savour more of ingenuity than of necessity, which alone should justify 

 alteration. The difficulties that must have attended the compilation of such a 

 monument of industry as this volume will be fully realised by all conchologists and 

 they will find that Dr. Dall's hope is a fact and ' that this summary will make the 

 path ' very much (Dr. Dall says ' somewhat ') ' easier for those who follow him.' '' — 

 B. B. Woodward. 

 The Nautilus, vol. 20, nos. 3-6, July-Xov. , 1906. 



" Notes on Valvata,''' by Bryant Walker [descriptions and figures of about 

 six species and varieties]. '■'■ Helix jejuna Say transferred to Praticolella" by H. A. 

 PiLSBRY [genitalia figured and described]. " Some Shells of Mississippi and 

 Alabama," by A. A. Hinkley [list of 32 spp.]. 



" The West American Species of Ge7iota,'' by W. J- Raymond [5 spp. figured 

 and described]. "Note on the Genus Glabaris Gray or /'rt^«/a;7a Swains.," by 

 W. H. Dall. " Some Shells of Mississippi and Alabama," by A. A. Hinkley 

 [further list of 90 spp.]. "A New Scala \_S. loweiX from California," by W. H. 

 Dall, "Descriptions of two new Cleopatra and a Pisidimn," by C. F. Ancey 

 [CI. iHultilirata, CI. smithi, and F. platialiiiii]. "On the Habits of Patricolella 

 iejiina," hy C. W.Johnson. '' C/ilon'iis edwardst Gude," hy C F. Ancey. "Note 

 on Dj/akia and Psetedoparitela," by H. A. Pilsbry. " A Synonym of Brac/ij/po- 

 della," by H. A. Pilsbry {Microstoma']. 



" Two New American Genera of Basommatophora," by H. A. Pilsbry [descrip- 

 tions and figures oi Aviphigyra alabamensis n.sp. , and Neoplaiiorbis iantilltis n.sp. , 

 both from Wetumpka, Alabama]. " Note on Lepyriinn," by PI. A. Pilsbry. 

 " Some Shells of Mississippi and Alabama," by A. A. Hinkley [further list of 95 

 spp.]. '■^Lymiicta danielsi sp. nov.," by F. C. Baker [from Lake Maximkukee, 

 Indiana, description only]. " Note on Afiira picia Reeve," by S. Rous. "Note 

 on Vi/rea approxiiiiaa.n6. V. vanattai,''' by H. A. Pilsbry and B. Walker. " Sub- 

 species, Mutations, and Forms," by T. D. A. Cockerell. 



" A Healthy Colony of Epiphragniophora tudiailata" by F. W. Kelsey. 

 " Remarks on certain New England Chitons with Description of a New Variety" 

 {Toiiicella ruber (Lowe) var. index nov.]," by F. N. B.\lch. "Some Observa- 

 tions on the ova of Unionidje," by L. S. Frierson. '' Spkivrinr/t hendersoiii n.sp.," 

 by V. Sterki [near Greeley, Colorado]. 



" On the Distribution of Helix hortensis Miiller in North America," by C. W. 

 Johnson. "A List of Shells from Nebraska," by B. Walker [45 spp.]. 

 " Lymnaa megasoina,'' by F. R. Latchford. 

 The Naturalist, nos. 594-599, July-Dec, 1906. 



" Notes on the Upper Chalk of Lincolnshire," by Arthur Burnet. ^^ Helix 

 ncmoralis and H. arbtistoriim in North- West Lincolnshire," by T. L. Warner. 



" Testacella scut iilu III at Rastrick," by J. E. Crowther. "Fossil MoUuscan 

 Zones in the Carboniferous Rocks of the Midlands " [pt. i], by Wheelton Hind 

 [2 plates]. 



" Notes on the Speeton Ammonites," by C. G. Danford. "Life-Zones in the 

 British Carboniferous Rocks," by Wheelton Hind. "The Fossiliferous Drift 

 Deposits at Kirmington, Lincolnshire, and at various Localities in the East Riding 

 of Yorkshire," by J. W. Stather. 



" On a Section in the Post-Glacial Deposit at Hornsea," by T. Shepj'ARD. 



