130 
THE TANGANYIKA PROBLEM. 
The fauna of the Albert Edward Nyanza is practically 
identical with that of the Albert Nyanza, the following 
types having been obtained : — 
ALBERT EDWARD NYANZA. 
LePIDOSIREXID/E. 
1. Protopterus aethiopicus Heac. 
Cyprinid*. 
2. Barbus fergussonii Blgr. 
3. ,, edwardianus Blgr. 
FISHES. 
Si lurid*:. 
4. Clarias lazeras. 
5. ,, moorii Blgr. 
ClCHLID*. 
6. Tilapia nilotica Blgr. 
1. Planorbis sudanicus Marts. 
2. Ampullaria erythrostoma Rv. 
3. Vivipara unicolor Ol. 
4. Cleopatra pirothi Jick. 
5. ,, exarata Marts. 
6. Bithynia alberti E. Sm. 
MOLLUSCA. 
| 7. Melania tuljerculata Mull. 
8. Unio stuhlmanni Marts 
9. ,, ngesianus Marts. 
10. Corbicula radiata Phil. 
11. Sphcerium species undetermined. 
Passing to the east, we encounter the Victoria Nyanza, 
the largest of all the African fresh-waters. This great lake 
is swarming with living things, but the fauna, in a specific 
sense, is by no means very profuse. When the genera of 
which it is composed are considered, the fauna of this lake 
is very comparable to that of Nyassa, and up to the present 
is known to consist of the following types : — 
VICTORIA NYANZA. 
FISHES. 
ClCHLID*. 
1. Paratilapia longiros/ris Hilg. 
2. ,, cavif rons Hilg. 
3. ,, retrodens Hilg. 
4. ,, serranus Blgr. 
5. 'I'ilapia nilotica Cuv 
6. ,, nuchisquamnlata Hilg. 
7. ,, sauvagii Pfeff. 
8. ,, oblit/nidens Hilg. 
Mastacembelid*. 
9. Mastacembelus , sp. 
Si LURID*. 
10. C/arias Lay era C. & V. 
11. Synodontis afrofischcri Hilg. 
Cyprixid*. 
12. Labeo forskalii Rupp. 
13. Labeo rueppellii Pfeff. 
,, victorianus Blgr. 
14. Barbus pagenstecheri Fisch. 
15. ,, tri macula/ ns Ptrs. 
16. Discognathus johnstoni Blgr. 
