844 SOIL I'KOTOZOA IX SOL'TII AFKICA. 



Infusoria. — Holoplurya ovutn, Colpoda cucuUus, CuJp'uHuDi 

 striatum, CycJidium glaucoma. 



Liesbeek 10. — The water cultures uf this soil yielded the 

 lullowiii"; Prcjtcjzoa : — 



lihizopoda. — Amoeba Umax, A. <juiinla, Euglypha sp. 

 JMastigophora. — Oikomonas term a, Bodo (P.) parva, 

 Euglena viridis, E. >oxyuri.s, Hcrpeto)iionas sp.,* 

 Pie a roino nas jac ulan s . 

 Infusoria. — Holophrya oviivt, Cyclldiii m ghnicoma, Colpuda 

 (■itciiUiii;,Colpidtuiii striatuvi, Uroleptiis piscis. 



Liesbeek 11. — The <following Protozoa, were detected in water 

 culture : — ■ 



lihizopoda. — Ama'ha ,proteus, A. Umax, A. guttula, 



Euglypha sp. 

 Mastigophora. — Oikomonas termo, Euglena oxyuris, Pleuro- 



monas jaculans. 

 Infusoria. — Lacrymaria olor, Colpoda cucuUus, Faccima:- 

 cium aurelia, P. putrinum, Stylonychia. mytilns, 

 Vroleptus piscis, Vorticella campanula. 



Liesbeek 12. — The water culture of this soil yielded the 

 following Protozoa: — 



Ehizopoda. — Euglypha sp. 



Mastigophora. — Oikomonas termo, Bodo (P.) parva, Plearo- 



monas jaculans. 

 Infusoria. — Lacrymaria olor, Stylonycliia nrytdus, Vrolep- 

 tus piscis, Vorticella campanula. 



Liesbeek 13. — This sample was a composite one of all Ihe 

 layers from one to twelve inches deep. In water culture it 

 .yielded the following Protozoa : — 



Ehizopoda. — Amoeba Umax, Euglypha sp. 



Heliozoa. — Actinophrys sol. 



Mastigophora. — Peranema trichophoru ni , Oik(>)i)onas termo, 



Bodo (P.) pa\Tva, Pleuromonas jaculans. 

 luhisoria.— Holophrya ovum, Lacrymaria olor, Colpoda 

 cucuUus, Colpidium striatum, (^yclidiu)it glaucoma , 

 Urolcptus piscis, VorLiccUu campanulu . 

 It will be seen that all the Protozoa found in the culture of 

 this composite soil are present in one or other of the constituent 

 layers, and that very few of the kinds of Protozoa found in the 

 indi^idiud layers are unrepresented in the composite layer. 



Liesbeek 14. — This was a composite sample taken from a. 

 large storm water drain under fig trees at the Rosebank Experi- 

 mental Station on May 15, 1922. It consisted of detritus from 

 the streets and gardens of Rosebank, deposited in the bed of the 

 drain under the influence of a backwater from the Liesbeek when 

 in flood. Its reaction was feebly acid to litmus. 



* This soil Herjjetom.ona.* measures 9(j, to 21 [^ in body length and 

 1.5^t to 3i4, in breadth. I propose for it the name, Herpetomonas terricolac, 

 for distinctive purposes. However, it is sometimes referred to as Hcrpt- 

 tomonas sp. in the text. 



