52 Mollusca fiu- 1909. 



Couffon, 0. et Surrault, Th. Catalogue de la Collection mala- 

 cologique de T. Letoumeux. — In: Bull. Soc. etud. sei,, Angers, 

 1909 (XVH-204 pp.). 



Crowther, J. E. Yorkshire Naturalists at Cawthorne — In : 

 The Naturalist, London, 1909, p. 393—397. 



Dakin, W. S. Pecten (the edible Scallop). — In: Liverpool 

 Proc. Trans. Biol. Soc, vol. 23, p. 333—468, with 9 pl. 



Dali, W. H. (1). Paradione n. n., vice Chionella. — In: 

 Pr. mal. Soc, London, VIII, p. 197. 



— (2). Further data on Polis generic Names. — Ibid. p. 251. 



— (3). Report on a Collection of SheUs from Peru, with a 

 Summary of the Littoral Marine Mollusca of the Peruvian Zoolo- 

 gical Province. — In: Pr. U. St. Nat. Museum, 1909, vol. 37, 

 p. 147—294, pl. 20—28. 



— (4). A new species of Pholadomya. — In : Nautilus, vol. 22, 

 p. 114. 



— (5). Some notes on Cypraea of the Pacific Coast. — 

 Ibid. p. 128. 



— (6). Note on Pholadomya pacifica Dali. — Ibid. p. 143. 



— (7). Dr. E. C. Stearns, Obituary. — Ibid., vol. 23, p. 70. 



— (8). Ludwig Rudolph Sophus Bergh. Obituary. — In: 

 Science, vol. 30, p. 304 and Nautilus, vol. 23 p. 72). 



Dali, W. H. and Paul Bartsch. A Monograph of West American 

 Pyramidelloid Mollusks. — In: Smithsonian Institution, U. St. Nat. 

 Museum Bulletin 68. Washington 1909. 256 pp. with 30 plates. 



Daniels, L. E. Records of Minnesota Mollusks. — In : Nautilus, 

 vol. 22, p. 119—121. 



Danielsen, D. Glacialgeologiske unders0kelser omkring Kriati- 

 anssand. — In: Nyt Mag. Naturv., Kristiania, vol. 47, p. 25 — 95. 



Dautzenberg, Fh. (1). Sur quelques cas teratologiques. — 

 In: J. de Conch., vol. 57, p. 39, Taf. 1. 



— (2). Additions et rectifications. — Ibid. p. 279. 



— (3). Sur les Mollusques marins provenant des campagnes 

 scientifiques de M. A. Gruvel en Afrique occidentale 1906 — 1909. — 

 In: Comptes Rendus Acad. Sc, Paris, 2 novbr. 1909. 



Dean, J. D. and C. E. Y. Kendali. Vertigo alpestris 

 Alder in its Distribution in North Lancashire and Westmoreland, 

 and its Association with Vertigo pusilla Mull. — In: J. of Conchol., 

 Leeds, vol. 12, p. 209— 211; Supplementary Note. With pl. 4, 

 ibid. p. 309. 



Dean. J. D. Helix cantiana Mont. at Tooting Common, Surrey. 

 — In: J. of Conch., Leeds, vol. 12, p. 258. 



Dubois, R. Contribution ä l'etude des perles fines, de la nacre et 

 des animaux qui les produisent. — In: Ann. Univ. Lyon, n. s6r., 

 vol. 29, p. 127. 



Ehrmann, P. Zur Naturgeschichte der Landschnecken — 

 Familie Acmidae. — In: S.-Ber. naturf. Ges., Leipzig, Jhg. 1908. 

 23 S. (ausgegeben Novbr. 1909). 



