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Kofoid, Charles A. 

 '96. A Report upon the Protozoa observed in Lake Michigan and 

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76-84. 



'96a. On the Occurrence of Troehosphaera solstitialis in the Illinois 

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Leidy, Joseph. 

 '79. Fresh-water Rhizopods of North America. Rep. U. S. Geol. 

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McMurrich, J. Playfair. 



'94. Text-book of Invertebrate Morphology, viii + 661 pp., 291 rig. 

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'90. Three New Rotifers. The Microscope, Vol. X., pp. 143-145. 3 fig. 



Plate, Ludwig. 

 '85. Beitrage zur Naturgeschichte der Rotatorien. Jenaische Zeit- 

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Rousselet, C. F. 

 '92. On Conochilus unicornis and Euchlanis parva — two New Roti- 

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'93. On a Method of Preserving Rotatoria. Ibid., Ser. II., Vol. V., 

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'95. Second Note on a Method of Preserving Rotatoria. Ibid., 

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Schewiakoff, Wl. 

 '93. Uber die Geographische Verbreitung der Siisswasser-Protozoen. 

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Shaw, "W. R. 

 '94. Pleodorina, a New Genus of Volvocineae. Bot. Gazette, Vol. 

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Smith, Frank. 

 '94. List of the Protozoa and Mollusca observed in Lake St. Clair in 

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Stokes, A. C. 

 '85. Some apparently undescribed Infusoria from Fresh Water. 



Am. Nat, Vol. XIX., pp. 18-27. 8 fig. 

 '85a. Some New Infusoria from American Fresh Waters. Ann. and 

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