198 Bibliography 



150. Walkicr, Bryant, On Certain Immature Anculosae. Nautilus, XXI, 



1908, pp. 110-117. 



151. Walker, Bryant, A New Species for the United States Fauna. 



Nautilus, XXIV, 1910, p. 11. 

 151a. Walker, Bryant, Notes on Planorbis, II: P. Bicarinatus. Nautilus, 

 XXIII, 1909, pp. i-io; 21-32. 



152. Walker, Bryant, The Distribution of Margaritana Margaritifera 



(Linn.) in North America. Pr. Mai. Soc. Lond., IX, 19 10, pp. 

 126-145. 



153. Walker, Bryant, Note on the Distribution of Margaritana Mono- 



donta Say. Nautilus, XXV, 191 1, p. 57. 



154. Walker, Bryant, On Paludina Coarctata and Incrassata Lea. Naut- 



ilus, XXVIII, 1915, pp. 121-127. 



155. Walker, Bryant, Pleurobema Missouriensis Marsh. Nautilus, 



XXVIII, 1915, pp. 140-1. 



156. Walker, Bryant, Apical Characters in Somatogyrus, with Descrip- 



tions of Three New Species. Nautilus, XXIX, 1915, pp. 37-41 ; 



49-53- 



157. Walker, Bry^ant, Unio Viridis Con. Nautilus, XXIX, 191 5, pp. 



74-78. 



158. Walker, Bryant, The Rafinesque-Poulson Unios. Nautilus, XXX, 



1916, pp. 43-47. 



159. Walker, Bryant, Pleurobema Lewisii (Lea). Nautilus. XXX, 1916, 



pp. 114-116. 



160. Walker, Bryant, Revision of the Classification of the North Amer- 



ican Patelliform Ancylidse. Nautilus, XXXI, 1917, pp. i-io. 

 t6i. Walker, Bryant, The Type of Pleurocera Rafinesque. Occ. Papers, 

 Mus. Zool., U. of M., No. 38, 1917, pp. i-io. 



162. Walker, Bryant, Notes on North American Naiades, I. Occ. Pa- 



pers, Mus. Zool., U. of M., No. 49, 1918, pp. 1-6. 



163. Westerlund, C. a.. Fauna der in der Paliiarctischen Region, etc. 



Vol. I-IIT and Supp., 1886-1890. 



164. W^ETherby, a. C, Review of the Genus Tulotoma, etc. O. J. Con.. 



I, 1876, pp. 207-215. 



165. Woodward, B. B., List of British Non-marine Mollusca. J- Con., X, 



1903, pp. 352-367. 



166. Woodward, B. B., Catalogue of the British Species of Pisidium. 



1013. pp. I-I44- 



167. Wricttt, B. H., Note on Sphserium Cubense Pme. Nautilus, III, 



1889, p. 19. 



168. Wricht, S. H. and B. H., Notes on the UnionidcX of Florida. Con. 



Ex., II, 1888, p. 112. 



