ZOOLOGY 453 



Family Cyrenid.e. 

 Corhicula nuUata {Parrej/s&), Philijtpi. 

 C. piisilla, Philippi. 



Family Unionid.e. 



Unio cef/i/jjtiacus, Caillaud. 



U. caillaiuli, Ferussac. 



U. hakeri, H. Adams. 



U. acuminatus, H. Adams. 



Spatha (Spathella) hourguignatl, Ancey. 



»S'. stuhlmanni, Martens. 



Jfntela nilotica, Ferussac. 



The following species occur in the Lake Albert Edward : 



Family Limn.eid.e. 

 Planorhis ajJertus, Martens. 

 P. sudanicus, Martens. 



Family Viviparid.e. 

 Vivipnra unlcolor, Olivier, var. conoldea, Martens. 

 Bithynia alherti, Smith. 

 B. humerosa, Martens. 



Fa:mily Ampullariid.e. 



Ampidlaria eruthrostonia, Reese, var. stuhlmanni, Martens. 

 A. ovata, Olivier, var. emini, Martens. 



Family Melaniid.e. 

 Melania tubercidata, Miiller. 



Family Cyrenid.e. 



Corhicula radiata {Parreiiss), Philippi. 



Family 1'nionid,e. 



Unio stuhlmanni, Martens. 

 U. ngesianus, Martens. 



CRUSTACEA. 



Thelphum nilotica, M. E. See Bell, P.Z.S., 1894, p. 166; Mount Elgon— coll. 



F. J. Jackson. 

 T. hn-ardi, Sav. Ruwenzori, o,000 to 6,000 feet-coll. Scott-Elliot ; Mount Elgon, 



7,000 feet — coll. Johnston. 



VERMES. 



Oligoch^ta. 

 Benhamia johnstoni, Beddard, P.Z.S., 1901, p. 203. Ruwenzori, 6,500 feet— coll. 

 Johnston. 



F. Jeffrey Bell. 



