NORTH AMERICAN CONCHOLOGY. 



413 



Lea, KilQBacy. — Explorations in Nebraska. Preliminary Re- 

 port of Lieut. G. K. Warren, Top. Eng., &c. &c. Dr. F. V. 

 Hayden's Report on Geology and Natural History. (From 

 Executive Documents printed by order of the House of Repre- 

 sentatives during the 2d Session of the 35th Congress, 1858-9, 

 vol. ii, pt. iii, p. 723. Washington, 1859.) 



Page. Name. 



Isaac L.ea. 



723 



Locality. 



Notes on Geographical Distribution. 



FLUVIATILE SHELLS. 



724 TJnio alatus Say. 



724 levissimus Lea. 



724 luteolus Lam. 



724 asperimus Lea. 



724 rectus Lea. 



724 elegans Lea. 



724 zig-zag Lea. 



724 anodontoides Lea. 



724 Margaritana complanata Lea. 



724 Anodonta Ferussaciana Lea. 



724 Lymnea elodes Say. 



724 Nuttalliana Lea. 



724 humilis Say. 



724 Haydeni Lea. 



724 Kirtlandiana Lea. 



724 umbrosa Say. 



721 lubricoideB Lea. 



724 Philadelphica Lea. 



724 Planorbis bicarinatus Say. 



724 trivolvis Say. 



724 lentus Say. 



724 parvus Say. 



724 campanulatus Say. 



724 Physa heterostropha Say. 



724 integra Hold. ? 



724 elongata Say. 



724 ampularia Say. 



725 Pisidium 1 



725 Cyclas ? 



725 Daphnia ? 



725 Amnicola porata Say. 



725 lapidaria. 



Big Sioux river. 

 Big Sioux river. 

 Big Sioux river. 

 Big Sioux river. 

 Big Sioux river. 

 James river. 

 White Earth river. 

 James river. 

 Fort Clark, Mo. 

 White river, Nebraska. 

 Big Sioux river. 

 Big Sioux river. 

 Big Sioux river. 

 Big Sioux river. 

 Big Sioux river. 

 Grindstone river, N. T. 

 Grindstone river, N. T. 

 Grindstone river, N. T. 

 Mouth of Big Sioux river. 

 Mouth of Big Sioux river. 

 Mouth of Big Sioux river. 

 Mouth of Big Sioux river. 

 Mouth of Big Sioux river. 

 Mouth of Big Sioux river. 

 Mouth of Big Sioux river. 

 Mouth of Big Sioux river. 

 Mouth of Big Sioux river. 

 Grindstone creek. 

 Grindstone creek. 

 Grindstone creek. 

 Fort Berthold. 

 Fort Berthold. 



