28 Moll 
VII. MOLLUSCA. 
487. [Smith, E. A.] Marine Mollusca. In ‘ Fauna and Geography of the 
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488. . Land and fresh-water shells. In ‘Nat. Hist. Sokotra and 
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489. Smith, J. P. The Carboniferous Ammonoids of America. Mon. 
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490. Sowerby, G. B. Descriptions of new species of Nassa , Purpura , 
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491. — — . Descriptions of Fourteen new Species of Marine Mollusca 
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492. . Mollusca of South Africa. Marine Investigations in South 
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493. & Fulton, H. G. Note on a specimen of Fistulana clava Lamk. 
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494. Spiess, C. Un cas de ruse chez l’escargot {Helix pomatia). Rev. 
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495. ^Stafford, J. Die Clamhscherei [Mya arenaria'] in der Passama- 
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496. Stanton, T. \V. A new fresh- water Molluscan Faunule from the 
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497. Stearns, R. E. C. Mollusks occurring in Southern California. 
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498. Stefan o, G. he. La fauna Malacologica del Pliocene Superiore del 
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499. Steinhaus, O. t)ber Bewegungsarten bei Muscheln. Verh. Ver. 
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500. Steinmann, G. Einfuhrung in die Palaontologie. Leipzig, 1903, 
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501. Stephan, P. Sur les spermies oligopyrknes et ap}T&nes de quelques 
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502. . La developpement des spermies apyrknes de Murex brandaris. 
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503. . La developpement des spermies apyrknes de Cerithium 
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504. Sterki, V. New Pisidia . Nautilus xvii, pp. 20-22. 
505. . New North American Pisidia. T. c. pp. 42 & 43. 
506. — — . New Pisidia . T. c. pp. 79-82. 
507. . Notes on the Unionidce and their Classification. Amer. 
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