452 ZOOLOGY 



Family Cyeenid.e. 



Corbicula radiata {Parreyss), Pliilippi. 



Sjihceriwn stuhlmaum, ^Martens. 



>S^. ni/anzce, Smith. 



Eupera jMrasitica (Parreyss), Deshayes. 



Family Unionid.e. 



Unio bakeri, H. Adams. 



U. acuminatus, H. Adam.s. 



U. emini, Martens. 



U. multicolor, Martens. 



U. hautcoeuri, Bourguignat. 



U. grandidieri, Bourguignat. 



U. edivardsianus, Bourguignat. 



U. duponti, Bourguignat. 



U. grantianus, Bourguignat. 



U. monceti, Bourguignat. 



U. rudlani, Bourguignat. 



U. lourdeli, Bourguignat. 



Mutela rubens, Lamarck. 



M. stibdiajihaiui, Bourguignat. 



M. bourguignati, Bourguignat. 



Sixxtha {Spathella) bourguignati, Ancey. 



S. martensi, Sturany. 



B. trajyezia, Martens. 



S. divaricata, Martens. 



S. subcequilatera, Martens. 



Family ^theriid^. 



JEtheria elliptica, Lamarck. 



The follo-sving forms occur in Lake Albert : — 



Family Limn-eid^. 



Planorbis siidanicus, Martens. 

 P. Stanley i, Smith. 



Melania tubemdata, Miiller. 

 M. liricincta, Smith. 



Vivipara rubicunda, ]\rartens. 

 Cleopatra ptirothi, Jickeli. 

 Bithynia alberti. Smith. 

 B. ivalleri, Smith. 



Amjmllaria tvernei, Philippi. 



Family Melaniid^e. 



Family Yiviparid^. 



Family Ampullariid^. 



