1910.] notifkra from taxgaxvika. 797 



Victoria Nyanza. 



Only a very few collections from tliis lalce were available ; they 

 were made near the sliore at Bukobii on tlie west coast in April 

 1905, and from tliese I obtained the following 8 species of llcjtifera, 

 all of which are already known from this lake : — 



Monostyla bulla Gosse. 

 Bracluouus hakeri Ehrenbg. 



,, falcatus Zach. 



,, forficida Wiei'z. 



„ caudatus Bair. & Dad. 



Schizocerca cUversicornis var. homoceros I)a<lay. 

 Anuroici aculeata var. valga Ehrenbg. 

 ,, cod dear is Gosse. 



In this list the presence of a number of rare species of Brachi- 

 onus is notable, a fact already noted by Prof. v. Daday. It is 

 evident to me that a more thorough exploi-ation of the micro-fauna 

 of this vast and shallow lake would reveal a very considerable 

 Rotatoi'ian fauna. 



Excluding the few species which could not be identified, the 

 above lists contain 37 species of Rotifera collected by Dr. Cun- 

 nington in the great lake regions of Central Africa, of which 

 11 species were already known by the work of Dr. Collin and 

 Prof. V. Daday, and 21 of these species were also previously 

 recorded by me from South Africa, whilst one species is new to 

 science. 



Lake Albert. 



Having also I'eceived for examination a very small tube of 

 Plankton material collected with the tow-net in July 1907 in 

 Lake Albert by Dr. R. T. Leiper, the Sui-geon accompanying 

 an expedition sent to this region by the Egyptian iSurvey 

 Department, I will here record the three species of Rotifei-a 

 found therein : — 



Monostyla bulla Gosse. 

 JYoieus quadricornis Ehrenbg. 

 Brachiomis hidentata Aiaderson. 



The last mentioned species appeal's to be very rai-e, ha\"ing been 

 found only once since its first discovery in Calcutta by Anderson 

 in 1891, namely, in Bulgaiia by Dr. KonsulofF (who sent me some 

 specimens for identification) aljout two years ago. 



Proc. Zool. Soc— 1910, Xo. LII. 52 



