94 PROTOZOOLOGY 



- (1930) Das Silberliniensystem der Ciliaten. IV. Ibid., 69: 

 235. 



(1942) Differenzierungsstufen des Silberlinien- oder neuro- 



formativen Systems. Ibid., 96:1. 

 Kleinschmidt, A. and Kinder, E.: (1950) Elektronenoptische Be- 



funde an Rattentrypanosomen. Zentralbl. Bakt. I Abt. Orig., 



156:219. 

 Kofoid, C. A. and Swezy, Olive: (1921) The free-swimming un- 



armored Dinoflagellata. Mem. Uni. Cal., 5:1. 

 Koltzoff, N. K. : (1911) Untersuchungen ueber die Kontraktilitat 



des Stieles von Zoothamnium alternans. Biol. Zeitschr. Mos- 



kau, 2:55. 

 Kraneveld, F. C, Houwink, A. L. and Keidel, H. J. W. : (1951) 



Electron microscopical investigations on trypanosomes. I. Proc. 



Kon. Nederl. Akad. Wetensch., C, 54:393. 

 Kruger, F.: (1934) Bemerkungen iiber Flagellatentrichocysten. 



Arch. Protist., 83:321. 

 (1936) Die Trichocysten der Ciliaten im Dunkelfeld. Zoo- 



logica, 34 (H. 91) :1. 

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sporidia. Illinois Biol. Monogr., 9:80. 

 (1936) Studies on Nyctotherus ovalis Leidy, etc. Arch. Pro- 

 tist., 87:10. 



(1946) Pelomyxa carolinensis Wilson. I. J. Morphol., 78:317. 

 (1951) Observations on Pelomyxa illinoisensis. Ibid., 88: 145. 



Kylin, H.: (1927) Ueber die karotinoiden Farbstoffe der Algen. 



Zeitschr. physiol. Chem., 166:39. 

 Lund, E. E.: (1933) A correlation of the silverline and neuromotor 



systems of Paramecium. Univ. Cal. Publ. Zool., 39:35. 

 Lynch, J. E.: (1930) Studies on the ciliates from the intestine of 



Strongylocentrotus. II. Ibid., 33:307. 

 MacLennan, R. F. : (1941) Cytoplasmic inclusions. In: Calkins and 



Summers' Protozoa in biological research. 

 (1944) The pulsatory cycle of the contractile canal in the 



ciliate Haptophrya. Tr. Am. Micr. Soc, 63:187. 

 Mainx, F.: (1928) Beitrage zur Morphologie und Physiologie der 



Eugleninen. Arch. Protist., 60:305. 

 Mast, S. O.: (1926) Structure, movement, locomotion and stimula- 

 tion in Amoeba. J. Morphol., 41:347. 

 (1928) Structure and function of the eye-spot in unicellular 



and colonial organisms. Arch. Protist., 60:197. 

 (1944) A new peritrich belonging to the genus Ophrydium. 



Tr. Am. Micr. Soc, 63:181. 

 and Doyle, W. L. : (1935) Structure, origin and function of 



cytoplasmic constituents in Amoeba proteus. Arch. Protist., 86: 



155. 



(1935a) II. Ibid., 86:278. 



Moses, M. J.: (1950) Nucleic acids and proteins of the nuclei of 



Paramecium. J. Morphol., 87:493. 

 Nassonov, D.: (1924) Der Exkretionsapparat (kontractile Vacuole) 



