SOME PAEA8ITIC PEOTOZOA FOUXD IN 

 SOUTH AFEICA.— III. 



By H. B. Fantham, M.A. (Cautab.), D.Sc. (Lond.), 

 Professor of Zoology, Universitij College, Jolianneshiirg. 



(Ah^fract.) 

 Read Jul !i 15, 1920. 



The present communication forms a continuation of pre- 

 ceding ones made at Annual Meetings of tlie Association in 

 1918 and 1919, and published in this Jouexal, vol. XV, 

 pp. 337-388, and vol. XVI, pp. 185-191. Preliminary accounts 

 only are given, as the work is being continued, and it is hoped 

 to publish fuller, illustrated accounts later, after more extended 

 study. This record, however, contributes to our knowledge of 

 the distribution of the parasitic* Protozoa. 



Attention may, be drawn to two points, the finding of 

 seasonal variation in the occurrence of Sarcosporidia, and the 

 presence of several genera and species of Ciliata in the digestive 

 tracts of various Ungulata. 



The term " parasitic " in the title is used in a wide and 

 general sense; some of the organisms described may prove to^ 

 be saprozoites and some may be commensals. 



Sarcodixa. 



Few additional Protozoa belongin.g to this class liave been 

 seen by me since my last report. On two occasions a few 

 amoebcTe have been found in the colon of horses at Onderste- 

 poort. These are probably specimens of Amadxi [E/ifdmwba) 

 intestinalis mentioned by Gredoelst (1911)* as occurring 

 normally in the intestine of the horse. The making of 

 I^ermanent preparations Avas difficult, as the infections were 

 very scant}'. 



MASTIGOniORA. 



The blood of some " field-mice," Arrianithis pumilio, 

 caught in the neighbourhood of Onderstepoort, contained 

 Tri/panosoina leivisi. One rodent out of three had a heavy 

 infection in its heart and internal organs. 



About 400 doo--fleas, Cfetioceplialus cmiis. were examined 

 in Johannesburg for possible intestinal Hagellates. (hily one 

 flea was found to be infected with Herpef(/i/ion(is ctenocepluih , 

 and the parasitisation was slight. 



Trichomonas suis was seen in the r;ecum of a pig in 

 Johannesburg. Two forms were observed, one large and broad 

 and the other relatively long and narrow, with folded mem- 

 brane. Division of the narrow forms was observed. 



* " Synopsis do Parasitolofiie." 



