342 MEMOIRS OF THE CARNEGIE MUSEUM. 



1868 Tryon, G. W. Notes on Mollusca Collected by F. V. Hayden in Nebraska 



{American Journal Conchology, VI, 1868, pp. 150-151). 

 1016 Utterback, W. I. The Naiades of Missouri {American Midland Naturalist, 



IV, 1916, pp. 1-200). 

 1910 Vanatta, E. G. Unionidai from Southeastern Arkansas and N. E. Louisiana 



(Nautilus, XXIII, 1910, pp. 102-104). 

 1915 Vanatta, E. G. Rafinesque's Types of Unio {Proceedings Academy of Natural 



Sciences of Philadelphia, 1915, pp. 549-559). 



1893 Vaughan, T. W. Notes on Mollusks from Northwestern Louisiana and Harrison 



County, Texas {American Naturalist, XXVIII, 1893, pp. 944-961). 

 1892 Walker, B. The Shell-bearing Mollusca of Michigan {Nautilus, VI, 1892, p. 

 42 et seq.). 



1894 Walker, B. Shells of Saginaw Valley, Michigan {Nautilus, VII, 1894, pp. 125- 



129). 

 1898 Walker, B. The Distribution of the Unionidae in Michigan {Report of Michigan 



Academy of Science, 1898, pp. 1-20). 

 1909 Walker, B. Annotated List of the Mollusca of Isle Royale, Michigan (In 



Adams, C. C, An Ecological Survey of Isle Royale, Lake Superior {Report 



University of Michigan Museum, 1909, pp. 281-298). 

 1910a Walker, B. The Distribution of Margaritana margaritifera (L.) in North 



America {Proceedings M alacological Society of London, IX, 1910, pp. 126-145). 

 19106 Walker, B. On the Validity of Unio undatus Barnes {Nautilus, XXIV, 1910, 



pp. 6-10; 16-24). 

 1910c Walker, B. Notes on Truncilla, with a Key to the Species {Nautilus, XXIV, 



1910, pp. 75-81). 

 1913 Walker, B. The Unione Fauna of the Great Lakes {Nautilus, XXVII, 1913, 



pp. 18-23; 29-34; 41-47; 56-59). 



1915 Walker, B. Unio viridis Conrad. {Nautilus, XXIX, 1915, pp. 74-78.) 



1916 Walker, B. The Rafinesque-Poulson Unios {Nautilus, XXX, 1916, pp. 43-47). 

 1918 Walker, B. Notes on North American Naiades. I. {Occasional Papers of 



the Museum of Zoology of the University of Michigan, No. 4-9, 1918, pp. 1-6.) 

 1908 Walker, R. D. & Coolidge, W. H., Jr. Mollusca of Keene, New Hampshire 



{Nautilus, XXII, 1908, p. 32). 

 1918 Wheeler, H. E. The Mollusca of Clark Co., Arkansas {Nautilus, XXXI, 1918, 



pp. 109-125). 

 1863 Whiteaves, J. F. On the Land and Fresh-water Mollusks of Lower Canada 



{Canadian Naturalist and Geologist, VIII, 1863, p. 99 et seq.) 

 1912o Wilson, C. B. & Clark, H. W. The Mussel Fauna of the Kankakee Basin 



{U. S. Bureau of Fisheries, Doc. 758, 1912, pp. 1-52). 



