— 172 — 



Scalcnu.slt))iia. — l'ii. C. Iîakkii. Dcscri]ili(»n ol a Xew Variety 

 of Lauiit.sili.s [L. nulidla unciclcnsis n. var.) l'rDiii ( turida Lako 

 willi Xdics un tlie L. lutcola Gnnip (PI. Ilj. — E. IJ. Hall aiul 

 A. \\ . AMiiiiosK. iJoscripUons ui New Species Iruin llie Crela- 

 coouy and Terliaiy ul the Tcsla, Plcasanlnn, San ,Iose and 

 Ml. llamilton Ouadranylcs. r^alilurnia (ouncluded) {I'IidIu- 

 domija llarriijiDn, Sclittriibachia l'emplcUmi, Pcmopiva Smithi^ 

 Mcsodcsnia pacijira, Macivii licaVi nn. spp., Ostica lilaii Cuur. 

 Aar. l'crriiH n. var., Maconia Wilcaxi, Pccicn Tolmani 

 nn. spp.i. — Noies : S. S. LÎLHiiV, San Diego Drift Shells : — 

 E. E. Hadley, Antiquily of llie Hélices ; — 11. A. Pilsbuy, Note 

 on Wilvala iiticia Pils. and l'"en'. ; — ^■. Stei^ki, Note on 

 Bilidavia uiinala SI. ; — W. H. Dall, .\ll. Monadnuck Shells. 

 — Edgar A. Smilli (Obituary). 



Vol. XXX, n" 8, December 1916. 



Contents : A. E. Ortmann. Tlie Anaiuniy of the Nayad 

 Ilijriop.sis Mijcrsidiia Lea. — C,. W. Johnson. Consistency in 

 Popular Nanies of Shells. — Paul Bautscii. The Missouri 

 River as a Faunal Parrier. — IlEiUiKHX X. Lowe. Sliell Collec- 

 lirig in the Sierra Nevadas. — Noies : 11. A. Pilsbuy, l'Ianorbis 

 dilatai us and P. Sampsoni. 



La Dircctricc-Gérantc : M'"'= H. Fischer. 



