The Eotifera of South Africa. By Charles F. Rousselet. 399 



afterwards obtained therefrom the following ten species of 

 Eotifers — 



Brachionus ftiradatus Thorpe. $ and ? abundant. 



„ „ var. inermis Rousselet. Abundant. 



„ quadratics Eousselet. Few. 



„ angularis Gosse. Few. 



Synchceta pectinata Ehrbg. Abundant. 



„ tremula Ehrbg. Few. 

 Polyarthra platyptera Ehrbg. Very abundant. 

 Triarthra longiseta Ehrbg. Abundant. 

 Anurcea aculeata var. valga Ehrbg. Abundant. 

 „ cochlearis Gosse. Few. 



The Tweespruit is a small rivulet which runs through the 

 grounds of the Government Experimental Farm some miles beyond 

 Thaba Nchu, and is a tributary to the Caledon river. It had been 

 dammed up at one spot, but the dam had been damaged and partly 

 washed away ; still a large pool of water was left, and from this 

 I obtained the following species of Rotifers — 



Brachionus furculatus Thorpe. <£ and fj? abundant. 



„ ,, var. inermis Rousselet. Abundant 



„ quadratics Rousselet. 



„ angularis Gosse. 



Synchmta pectinata Ehrbg. 

 Euchlanis oropha Gosse. 

 Cathy pna luna Ehrbg. 

 Anurcea acideata var. valga Ehrbg. 



In both these localities B. furcidatus was very abundant and 

 the specimens much larger in size than those found at Pretoria. 

 The var. inermis and the males were also plentiful. The other 

 kinds show no difference from the same European species, except 

 perhaps that the posterior spines of Anurosa aculeata var. valga 

 are somewhat larger than usual. 



Our next stopping place after twenty-four hours' railway journe} 

 was Kimberley, more celebrated for its diamonds than for its 

 Rotifers. We crossed the Orange River three times on our journey, 

 and I much regretted not to be able to collect in the pools of water 

 which I could see in the river bed when crossing the bridges ; a 

 flow of water was scarcely perceptible. Kimberley is a notoriously 

 dry place, and formerly, in the early days of diamond digging, four 

 shillings were paid for a cask of water. At the diamond mines the 

 water used for washing the blue diamontiferous ground is pumped 

 up from the deep workings, collected in settling tanks, and used 

 over and over again. The only suitable pool or lake I could find 

 here was one at Alexanderfontein, a pleasure resort some six miles 



