KGEKsoLL.] ZOOLOGY UNIONID^ LIST OF AUTHORITIES. 40? 



Splicer iuni patella, Gonld.— Walla- Walla, Oregon (Z7. S. Uxpl. Exped.). 



Spluvrium lenticular Gkl. — Lake Tahoe, Klamath and Carson Elvers, 

 Cal. [Cooper). 



Splucrium timiiduni, Baird. — Sumass Prairie, Fraser Kiver [Lord). 



S])]ucrinm spoTxani, Baird.-^Spokane and Kootauie Elvers [Lord; 

 Hemphill). 



Sphcerium tenue, Prime. — I am confident tliat I secured this species 

 (one S}3ecimen) at the Eio La Plata. It has been recorded, I think, 

 from Montana and another northern locality. It is a boreal species. 



Pisidinm abditiim, Haldeman. 



Camp 9: Hot Springs .* 30 specimens. 



Camp IJ : Animas Valley 1 specimen. 



Saint Mary's Lake, Antelope Park 1 specimen. 



Eaft Elver, near Fort Hall, Idaho [Beid) ', Truckee Elver [Carlton). 

 All over the continent. 



My specimens vary greatly in color, bnt seem to be all referable to 

 this widely-distributed species. Many are about half-grown. 



Fisidium compressum^ Prime. — White Pine, I^fevada ; Owen's Elver, 

 California [Hemphill). Northern States and Canada. 



Fisidium occidentale, Newc. — Truckee Elver, Nevada [Carlton). Cali- 

 fornia. 



Fisidium ultramontanum, Prime. — Canoe Creek, Pitt Elver, California 

 [Cooper). 



UNIONID^. 



Vnio luteolus, Lam. — Mlssoui 1 Elver, above the Falls ( Cooper). United 

 States generally. 



JUargaritana margaritifera, Linn. — Missouri Elver above the Falls ; 

 Spokane Elver below Coeur d'Alene Lake [Cooper)-, Salt Lake, Utah, 

 or Fort Hall, Idaho [Reid) ; Truckee Eiver, Nevada [Carlton). Cosmo- 

 politan. This Mollusk is eaten by the Indians east of the Cascade 

 Mountains. 



Anodonta angulata, JjQa. — Idaho^ Montana [Cooper); Columbia Elver 

 [Lord.) Considered at most only a variety of the foregoing. 



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

 [Lord); Montana [Cooper). 



Anodonta Nuttalliana., Lea. — Idaho [Cooper). 



Anodonta whalamatensis, Lea. — Idaho, to British Columbia [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 

 mollusca of the Central Province, so called. 



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

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

 of the Limn£eid£e, Lea's Observations, Binney and Bland's Land and 

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

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

 fauna of any district, but scarcely require mention among special author- 

 ities. 



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

 couver's Island and in British Columbia, by J. K. Lord, lSo8-G2 : 

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



