1910.] ROTIFERA FROM TANGANYIKA. 793 



from the Centinl Africiiu Region, and particulai'ly fiom Lakes 

 Tanganyika and Nyasa, have been made. 



The tnbes examined by me came from three lakes : — 



1. Lake Tanganyika, inchiding the Lofu river. 



2. Lake Nyasa. 



3. Victoria N3'anza. 



From these I obtained a total number of 37 species, of wliich 1 1 

 had ah'eady been recorded from the Victoria Nyanza and adjacent 

 region. Most of these species have a wide distribution and are 

 kr.own from various pai'ts of the work!, and only one species, 

 from the Lofu riA'er, can be described as new. 



In oi'der to make this record of Centi'al African Ilotifera. 

 complete, I will preface my results with the list of species fouixl 

 by the above mentioned authors, Dr. Collin and Prof. v. Daday, 

 in and about Victoria Nyanza, excluding the doubtful species not 

 identified : — 



Botifer imlgaris Ehrenbg. (C.) 

 Philodina emhii Collin. (C.) 

 Triarthra lovgiseta Ehrenbg. (D.) 

 Asplanchna hrightirelli Gosse. (D.) 

 NotojJS macrourus EaiT. & Dad. (1).) 

 Copeihs cojieus Ehrenbg. (C.) 

 Tetramastix ojwliensis Zach. (D.) 

 E'uc/ilaiiis longiccmdaia Collin. (C.) 



(Which is identical with Buchlanis pi^ojxdula Gosse.) 

 Monostyla bulla Gosse. (D.) 

 jVoiens siuhlmanni Collin. (C.) 

 Brachionus ruhens Ehi'enbg. (C. ; D.) 



,, avgularis Gosse. (D.) 



„ hakeri Ehrenbg. (D.) 



?) forjicula Wierz. (D.) 



,, fulcatus Zach. (I).) 



,, pala Ehrenbg. (D.) 



,, vtilitaris Ehrenbg. (D.) 



„ ietmcauthus Collin =: 7>. caudaius Rarr. it Dad. 



_(C.;D.)_ 

 Schizocerca diversicorins var. homoceros Dadav. (D.) 

 Aaiira'a aculeata Ehrenbg. (D.) 



„ ., var. vcdga Ehrenbg. (C.) 



,, cochlearis Gosse. (D.) 

 Pedcdion mirum Hudson. (D.) 



Lake Tanganyika. 



From this lake a large number of tubes were available, collected 

 from October 1904 to February 1905, all fine tow-nettings made 

 some distance from the shore and near the following localities : — 

 Mbete, southern end of lake ; Ivoniba Bay, south-western corner ; 

 Kala, a short distance up the eastern shore ; Kasawa. on the west 



