466 PROTOZOOLOGY 



cytoplasm distinctly differentiated; secondary body larger than the 

 nucleus; flagellated swarmers are said to occur; parasitic in coelom 

 of Chaetognatha such as Sagitta claparedei, Spadella bipunctata, S. 

 inflata, and S. serratodentata. Cytology (Janieki, 1928, 1932). 



P. schaudinni Faria, da Cunha and Pinto. About 7-22/x in diame- 

 ter; in salt water; Rio de Janeiro, Brazil. 



References 



Andresen, N.: (1942) Cytoplasmic components in the amoeba, 

 Chaos chaos L. C. R. Lab. Carlsberg, Ser. chim., 24: 139. 



Angerer, C. A.: (1942) The action of cupric chloride on the proto- 

 plasmic viscosity of Amoeba dubia. Physiol. Zool., 15:436. 



Balamuth, W. and Brent, M. M.: (1950) Biological studies on 

 Entamoeba histolytica. IV. Proc. Soc. Exper. Biol. Med., 75:374. 



Barret, H. P. and Smith, Nanine M.: (1924) The cultivation of an 

 Endamoeba from the turtle, Chelydra serpentina. Am. J. Hyg., 

 4:155. 



Becker, E. R. : (1926) Endamoeba citelli sp. nov., etc. Biol. Bull., 

 50:414. 



■ , Burks, C. and Kaleita, E.: (1946) Cultivation of Enda- 

 moeba histolytica in artificial media from cysts in drinking water 

 subjected to chlorination. Am. J. Trop. Med., 26:783. 



Belda, W. H.: (1942) Permeability to water in Pelomyxa carolinen- 

 sis. I. Salesianum, 37:68. 



— (1942a) II. Ibid., 37:125. 



— (1943) III. Ibid., 38:17. 



Bishop, Ann: (1932) Entamoeba aulastomi. Parasitology, 24:225. 



(1937) Further observations upon Entamoeba aulastomi. 



Ibid., 29:57. 



and Tate, P.: (1939) The morphology and systematic posi- 



tion of Dobellina mesnili, etc. Ibid., 31:501. 

 Bundesen, H. N., Conolly, J. I. et al.: (1936) Epidemic amebic 



dysentery: etc. Nat. Inst. Health Bull., no. 166. 

 Carini, A.: (1933) Parasitisme des Zellerielles par des microorga- 



nismes nouveaux (Brumptina n.g.). Ann. Parasit., 11:297. 

 (1943) Novas observacoes em batraquios e ofidios, etc. Arqu. 



Biol., 27:1. 

 and Reichenow, E.: (1935) Ueber Amoebeninfektion in 



Zelleriellen. Arch. Protist., 84:175. 

 Casagrandi, 0. and Barbagallo, P.: (1895) Ricerche biologiche e 



clinique suh" Amoeba coli. I, II. Nota prelim. Bull. Accad. 



Gioenia Sc. Nat. Catania, 39:4 and 41:7. 

 Cash, J.: (1905) The British freshwater Rhizopoda and Heliozoa. 1. 



London. 

 Chalkley, H. W.: (1936) The behavior of the karyosome and the 



"peripheral chromatin" during mitosis, etc. J. Morphol., 60:13. 

 and Daniel, G. E.: (1933) The relation between the form of 



the living cell and the nuclear phases of division in Amoeba 



proteus. Physiol. Zool., 6:592. 



