ZOOLOGY 451 



Suhnlina memhriensis. Smith, var. circumstriata. Martens (a). 



S. hicohimallaris, Martens {a). 



S. pai«;isjMt'a, Martens (c). 



Oj'eas suhvaricosa, ]\Iartens {a). 



0. streptostaloides, Martens (6). 



0. cremdata, Smith (c). 



Gfostilhia stuhlmanni, Martens (a). 



Family CvcLOPHORiDiE. 



C)/clophorus (Afefidtis) intermeduis, Martens (b). 



The following species have been recorded from Lake Victoria 



Family Limn.«id.e. 



Limnwa debaizei, Bourguignat. 



L. nyansce, Martens. 



Isidora trigona, Martens. 



/. strigosa, Martens. 



/. tyansversalis, Martens. 



/. forskali, Ehrenberg. 



Phi/sopsis ovoidea, Bourguignat. 



Flanorbis choanomphalus, Martens. 



P. siidanicxis, Martens. 



P. victorke, Smith. 



Aiicj/his stuhlmanni, Martens. 



Mdania tubercidata, Miiller. 



Family Melaniid,e. 



Family Ampullariid.e. 



Ampidlaria m/anzce, Smith. 



A. ovata, Olivier. 



A. gordoni. Smith. 



A. latourvieicxi, Bourguignat. 



Lanistes schiveinfwthi, ^lartens. 



Family Viviparid^e. 



Vivipara abyssinica, Martens. 



V. pihthinotrojns, Martens. 



V. mbicunda. Martens. 



V. trochlearis, Martens. 



V. costidata, Martens. 



V. meta, Martens. 



V. capillata, Frauenfeld. 



V. victorke. Smith. 



V. juctmda. Smith. 



r. caj)oides. Smith. 



V. unicolor, Olivier. 



Cleopatra guillemei, Bourguignat. 



Bithynia hiimerosa, Martens. 



