106 Dr. W. Kobelt: 



Sinith, Edg. A. Mollusca, in: Report Coli. Nat. History made 

 in the Antarctic Region during the Voyage of the Southern Gross, 

 London 1902, p. 201—213, pl. 24, 25. 



— (2). On the supposed similarity between the Mollusca of 

 the Arctic and Antarctic Regions. — In: Pr. mal. Soc. London, 

 vol. 5, p. 102—166. 



— (3). Note on Cypraea microdon Gray. — Ibid. p. 167, 168. 



— (4). Description of Achatina machachensis n. sp. from Ba- 

 suto-Land. — Ibid. p. 169, Textfig. 



— (5). On Corona pfeifferi var. gracilis n. var. from S. E. 

 Columbia. Ibid. p. 370, Textfig. 



— (6). Descriptions of new species of marine shells from 

 South Africa. — In: J. Conch. Leeds vol. 10, p. 248—251, pl. 4. 



— (7). Land molluscs from Uganda. — In: Johnston, the 

 Uganda Protectorate, p. 443—453. — London 1902. 



Smith, H. H. An annotated catalogue of shells of the genus 

 Partula in the Carnegie Museum. — In: Ann. Carnegie Mus. I, 

 p. 422-485. 



Soelner, U. W. H, Vitrea draparnaldii Beck, in Washington 

 DC. In: Nautilus vol. XVI, p. 94, 95. 



Somerville, A. The Conchology of the Clyde, geographical 

 and biological. In: J. Conch. Leeds vol. X, p. 137 — 141. 



Sowerby, (j. B. Mollusca of South Africa, Cape Town 1902, 

 p. 93—100, pl. 2. 



— (2). Note on the Opercula of Turbo pulcher Reeve and 

 T. ticaonicus Reeve. — In: Pr. mal. Soc. London, vol. 5, p. 12. 



Springer, A. On some living and fossil snails of the Genus 

 Physa found at Las Vegas, New Mexico. In: Pr. Ac. Philadelphia, 

 p. 513—516. 



Stearns, R. E. C. The Fossil Fresh-Water Shells, their 

 Distribution, Environment and Variation. — In: Pr. U. St. Nat. Mus. 

 vol. XXIV, p. 279—299, pl. XIX-XXIV. 



— (2). Helix var. circumcarinata and Pyramidula elrodi. — 

 In: Nautilus, vol. XVI, p. 61, 62. 



— (3). „Pyramidula" elrodi and Epiphragmophora circumcari- 

 nata. — Ibid. p. 83, 84. 



Sterki, V. Pisidium strengi n. sp. — In: Nautilus, vol. XV, 

 p. 126. 



— (2). Some notes on the North-American Cycladinae, with 

 new species. Ibid. vol. XVI, p. 89 — 93. 



— (3). Some additions and corrections to the list of land- 

 and freshwater Mollusca of Tuscarawas Co., Ohio. — In: Ohio 

 Naturalist vol. 2, p. 286. 



Steusloff, U. Xerophile Heliceen im Osten Mecklenburgs. — 

 In: Archiv Ver. Mecklenburg vol. 55, p. 176 — 179. 



Sturany, R. Ueber die Verbreitung von Cylindrus obtusus 

 Drp. — In: Nachrbl. D. malak. Ges. 1892, vol. 24, p. 9—13. 



