452 ZOOLOGY 



Family Cyrenid.e. 



Corhiculd raJiatn (Pay)'e;/ss), Philippi. 



S/>hcerium stuhlmanni, Martens. 



*S'. nyanzce, Smith. 



Eupera jMrasitica {Parreyss), Desliayes. 



Family Unionid.e. 



Unio hdkeri, H. Adams. 



U. acuminatiis, H. Adams. 



U. emini, Martens. 



U. multicolor, Martens. 



U. haictcoeuri, Bourguignat. 



U. grandidieri, Bourguignat. 



U. edivardsianus, Bourguignat. 



U. duponti, Bourguignat. 



U. granti/iiim, Bourguignat. 



U. monceti, Bourguignat. 



U. rudlani, Bourguignat. 



U. lourdeli, Bourguignat. 



JIutela ruhens, Lamarck. 



21. suhdiajjhana, Bourguignat. 



31. bourguignati, Bourguignat. 



jSpatha (Spathella) bourguignati, Ancey. 



jS'. martensi, Sturany. 



iS. tixipezia, ^Martens. 



>S. divaricata, ^Martens. 



.S'. subcequilatfiu, ]Martens. 



Family x^thepjid.*:. 

 J^theria clUptica, Lamarck. 



The following forms occur in Lake Albert : — 



I'amily Limx.eid.e. 



Planorbis sudanicus, Martens. 

 P. .stanlcj/i, Smith. 



Melanici tuberculatu, Muller. 

 M. liricincta. Smith. 



Vivijxira ruhicunda, ^Martens. 

 Cleopatra jnrothi, Jickeli. 

 Bithynia alberti, Smith. 

 B. v'alleri, Smith. 



Anipullaria ivernei, Philippi. 



Family Melaniid.e. 



Family yiviPARiD.j:. 



Family Ampullariid.e. 



