SOIL PROTOZOA IN SOUTH AFRICA. 381 



Mastigophora. — Oikom.on.as termo, Bodo {Prowazekidi 



parv a. 

 Infusoria. — Lacrymaria olor, Golpoda cucullus. 

 (ii) Cultivated fallow, sample kept in a pot in a field. On 

 culture it yielded: — 



Mastigophora. — Euglena viridis, Bodo {Prowazekidj 



parv/ 

 Infusoria. — Golpoda cucullus. 

 (Hi) Uncultivated fallow, kept in a pot in a field. On water 

 culture the following Protozoa were observed: — 



Mastigophora. — Euglena viridis, Bodo (Prowazekiay 



parva. 

 Infusoria. — Golpoda cucullus. 



Ill Natal Soils. 



Samples of soil from sugar and banana growing districts near 

 Durban, from Cedara Agricultural College and from Durban 

 Botanic Gardens were examined. 



Umgeni. — This sample was described as "good sugar soil" and 

 was bearing a heavy crop of young sugar cane when the specimen 

 was collected, on 22nd April, 1921, slight rain falling at the time 

 The specimen was a rather heavy, dark loam, and was taken at 

 about twelve inches from the surface. Its reaction to litmus was 

 acid. In water culture the following organisms were obtained: — 



Heliozoa. — Actinophrys sol. 



Mastigophora. — Masbigamoeba, Bodo (Prowazekia) parva, 



Euglenoids , Gercomonas crassicauda. 

 Infusoria. — Paramoecium aurelia, Gyclidiu m glaucoma, 



Pleuroneuia chrysalis, Spirostomum ambiguum, 



Euplotes patella, Euplotes harpa, Vorticella cam- 



parmla . 



Sydenham. — This soil was a somewhat tenacious loam bearing 

 a good crop of sugar cane, the sugar being described as of a "good 

 medium grain." The sample was collected as a mixed sample of 

 all the layers to about twelve inches deep, on 24th April, 1921, 

 the day being very hot. The sod was slightly damper than that 

 obtained from Umgeni. Its reaction to litmus was acid. In water 

 culture it yielded: — 



Mastigophora. — Mastigamoeba, Bodo (Prowazekia) parva, 



Oikor&pnas (Monas) termo, Gercomonas crassicauda, 



Euglenoids. 



Infusoria. — Golpoda cucullus, Golpidium striatum, Cych- 



dium glaucoma, Oxytricha pellionella, Euplotes liar pa. 



Mayville. — This sample was of reddish loam mixed with a 

 small amount of sand, and was obtained from a well-irrigated 

 banana plantation on 24th April, 1921, on a very hot. day. Its 

 reaction to litmus was feebly acid. Tbe Protozoa obtained in 

 culture were : — 



