140 



Pisidiiim campresHum,VnmQ. — White Pine, IST evada ; Owen's River, 

 California {Hemphill). 



Flsidium oocidentale, ISTewc. — Truckee Eiver, Nevada (Carlton). 



Plsidium uUramontanum, Prime. — Oanoe Creek, Pitt Eiver, California 

 {Cooper). 



UNIONID^. 



Unio luteolus, Lam. — Missouri Eiver, above tlie Falls (Cooper). 



Margaritana margaritlfera, Linn. — Missouri Eiver above the Falls ; 

 Spokane Eiver below Coear d'Alene Lake (Cooper); Salt Lake, Utah, 

 or Fort Hall, Idaho (Beid) ; Truckee Eiver, Nevada (Carlton). 



Anodonta angulata, Lea. — Idaho, Montana (Cooper); Columbia Eiver 

 (Lord). 



Anodonfa oregonensis, Lea. — Abundant east and west of the Cascades 

 (Lord); Montana (Cooj^cr). 



Anodonta WuttalUa^ia, Lea. — Idaho (Cooper). 



Anodonfa tvhalamatensis, Lea. — Idaho, to British Columbia (Cooper). 



Anodonta calif orniensis. — Colorado Eiver (Cooper). 



LIST OF AUTHORITIES. 



The following list of authors is intended to include all of the books 

 and papers published in English that contain direct reference to the 

 moUusca of the Central Province, so called. 



Such general works as Gould's Shells of the United States Exploring 

 Expedition, Dr. Binney's Terrestrial Mollusks, Haldeman's Monograph 

 of the LimnreidjB, Lea's Observations, Binney and Bland's Land and 

 Fresh- Water Shells of North America, and Pfeiffer's Monographia 

 Ileliceorum, must, of course, be consulted in working up the molluscan 

 fauna of any district, but scarcely require mention among special 

 authorities. 



Baird. Descriptions of some new species of shells collected in Van- 

 couver's Island and in British Columbia, by J. K. Lord, 1858-62 : by 

 Wm. Baird, M. D. Proc. Zool. Soc. of London, 1863-67. 



Bland and Cooper. Notice of land and fresh- water shells collected by Dr. 

 J. G. Cooper, in the Eocky Mountains, etc. : by Thos. Bland. Ann. N. 

 Y. Lye. N. H., 1861, 362, 



Binney. Eeport on the laud shells collected on the survey : by W. G. 

 Binney. In the Eeports of explorations and surveys for a railroad from 

 the Mississippi Eiver to the Pacific Ocean, etc., VI, 111. 



Descriptions of American land shells : by W. G. Binney. Proc. 



Phil. Acad., IX, 18. 



Notes on American land shells. No. 3 : by W. G. Binney. Proc. 



Phil. Acad. Sc, X, 197. 



A supplement to xVmos Binney's Terrestrial Mollusks of the 



United States, constituting Volume IV of the same : by W. G. Binney. 

 Boston, 1859. [From the Journal of the Boston Soc. of Nat. Hist.] 

 Catalogue of the terrestrial air-breathing mollusks of the United 



States : by W. G. Binney. Bull. Mus. Comp. Zool., Ill, ix. 



Carpenter. The mollusks of western North America : by P. P. Carpen- 

 ter. Washington, Smithsonian Institution, 1872. [Eeprinted from 

 Eeport to the Brit. Assoc, etc.] 



Carlton. List of the shells of Truckee Eiver and vicinity : by H. P. 

 Carlton. Proc. Cal. Acad. Sc, IV, 57. 



Conrad Description of a new species of Meiania: by T. A. Conrad. 

 Proc. Phil. Acad. Sc, VII, 269. 



