410 GEOLOGICAL SURVEY OF THE TERRITORIES. 



Stearns. Remarks on fossil shells in the Colorado Desert: by E. C. 



Stearns. Proc. Gal. Acad. Sc, IV, 229. 

 Stimpson. Researches on the Hydrobiinse and allied forms : by Dr. Wm. 



Stimpson. Washington, Smithsonian Institution, 1865. 

 Tryon. Catalogue of the species of Physa inhabiting the United States : 



by George W. Tryon. Am. Jour. Concbology, I, 165. 

 Descriptions of new species of Amnicola, Pomatiopsis, Somato- 



gyrus, Gabbia, Hydrobia, and Rissoa : by George W. Tryon. 



Am. Jour. Conchology, I, 219. 

 Descriptions of new species of North American Limnseidse: by 



George W. Tryon. Am. Jour. Conchology, I, 223. 

 Review of the Goniabases of Oregon and California: by George 



W. Tryon. Am. Jour. Conchology, I, 236. 

 Catalogue of the species of Llmnea of the United States : by 



George W. Tryon. Am. Jour. Conchology, I, 247. 

 New localities for Physce : by George W. Tryon. Am. Jour. 



Conchology, II, 7. 

 Monograph of the family Strepomatidse : by George W. Tryon. 



Am. Jour. Conchology, I and II. 



