Illustrations Xlil 
PAGE 
Aspatharia proteher: Trem Stamey ville. oo ccc eae ee cee ee a 
Aspatharia wissmanne: Troms Wiedie. 0 a a a i ee 424 
Aspatheria wissmanni bangalorum: type, from Malema....................... 425 
Congeria ornata: view into the cavity of the beak......................0.0440- 457 
Maps 
Distribution of the genus Vivtperus im Africas 2.03) ye ne 204. 
Distribution of Melanonies tuberculoia....... ee ae 253 
Distribution of the genus Potadoma....:-.... 52. 2+. ee es a 274. 
Distribution of the eenus Cleonaivd....! ose. eG Be ae Va eee ss oe 290 
Present-day distribution ot the genus Corbicula................0 0.0 e eee eee. 888 
Distribution of the wenus Hiheria.......... 05... eee ae 448 
Distribution of Opeas gracile.......... ae tors ts 
Distribution of mean annual rani on ane ee connonts ee i 
Orographic map of the Belgian Congo. :..:...-..:.0.50 1 i ie 
Avifaunal map of the Ethiopian Region... )-:- 02...) 6.5). 4 i ae AO 
Orographic map Gf Africa. 7.05. 0.00 0 i ea ee 481 
Malacological main divisions of the Ethiopian Region...................---. 483 
Zodgeographic regions of the Belgian Congo.............. 065-055 eee eee 487 
Hypothetical extent and distribution of lake and river basins on the African 
continent, toward the close of the Pleistocene.......... ery | | 
Hydrographic map of the Congo basin and the ad) son river . intents ee. 551 
