— , 1882, On the History and Distribution of the freshwater 

 Mussels and the identity of certain alleged Species ; Proc. 

 Cal. Acad. Sci. separate only, 21 pp. 



— , 1883, On the Shells of the Colorado Desert and the Region 

 farther East, The Physas of Indio, Anodonta californiensis 

 in a new locality; Am. Nat. XVII, (2), 1014-1020, several fig- 

 ures. 



— , 1890, List of American Land and Fresh-water Shell re- 



ceived from the U. S. Department of Agriculture, etc. ; Proc. 

 U. S. Nat. Mus., XV, 1891, 95-106. 



— , 1893, Report on the Land and Fresh-water Shells of the 

 Death Valley Expedition; Nor. Am. Fauna VII, 269-283. 



— , 1894, Notes on recent Collections of North American 



Land, Fresh-water, and Marine Shells received from the U. 

 S. Department of Agriculture; Proc. U. S. Nat. Mus., XVI, 

 743-55. 



1901, The fossil Fresh-water Shells of the Colorado 



Desert, their distribution, environment, and variation ; Proc. 

 U. S. Nat. Mus. XXIV, 1901, 271-99, PL IX-XXIV, text cuts. 

 (Some of the most interesting discussions of the distribution 

 and variation of the southern California fresh-water shells 

 in these papers.) 



Sterki, V., 1903, New North American Pisidia ; Naut. XVII, 

 42-3. 

 (P. ashmuni- Corneocyclas pulchella Jenys.) 



Try on, G. W., 1863, Descriptions of new Species of Fresh-water 

 Mollusca, belonging to the Families Amnicolidae, Valvatidae, 

 and Limnaeidae, inhabiting California; Proc. Phila. Acad. 

 Nat. Sci. XV, 147-50. 



, 186^ Descriptions of new Species of North American 



Limnaeidae; Am. Jour. Coneh. I (3), 223-31, PI. XXII-III. 

 (Physa Traski=P. fontinalis acuta.) 



Veach, J. A., 1857, Mud Voleanoes of the Colorado Desert ; 

 Proc. Cal. Acad. Sci. I, 104ff. 



Yates, L. G., 1890, The Mollusca of the Channel Islands of Cali- 

 fornia; Rpt. State Min. Cal. IX, 175-8. 



- 1890, The Mollusca of Santa Barbara County, Cal., etc. ; 

 Bull. Sta. Barb. Soc. Nat. Hist. II, 37-48, 2 PI. 

 (First record of living fresh- water shells from the Channel 

 Islands.) 





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