b) Subgenus Joubertia Bgt, 
Stanleyana Bgt.Tanganyika 
baizeana Bgt. n 
spinulosa Bgt. 
c) Subgenus Lavigeria Bgt. 
yrandis Bgt.Tanganyika 
diademata Bgt. . 
coronata Martens 
callista Bgt. . . 
pereximia Bgt. . 
jouberti Bgt. . 
ruellianiana Bgt. 
combosa Bgt. . 
vai\ litt&raUs Bgt. 
„ monceti Bgt. 
tiarella Martens .... Tanganyika 
variabilis Martei & Dautz 
nassa Woodward ... n 
(arenarum Bgt.) 
(elonyata Bgt.) 
(giraudi Bgt.) 
(grandidieriana Bgt.) 
(lacrimosa Bgt.) 
(lessepsiana Bgt.) 
(limnaea Bgt.) 
(livingstoniana Bgt.) 
(locardiana Bgt.) 
(mabilliana Bgt.) 
(milne-edwardsiana Bgt.) 
(nassatella Bgt.) 
(nassatiformis Bgt.) 
(pulchella Bgt.) 
(randabeli Bgt.) 
(servainicina Bgt.) 
(smithi Bgt.) 
(venusta Bgt.) 
reymondi Bgt. . . . 
(bythiniformis Bgt.) 
(cameroniana Bgt.) 
(duveyrieriana Bgt.) 
(egregia Bgt.) 
Tanganyika 
d) Subgenus Uandabelia Bgt. 
catoxia Bgt.Tanganyika 
hamyana Bgt. 
Genus JMgaria Bourguignat. 
(Nassopsidea Martens.) 
paucicostata E. A. Smith . Tanganyika 
(flexicosta Martens) 
(tiarella Märtel & Dautz.) 
var. callopleuros Bgt. . 
(formosa Bgt.) 
(infralirata Bgt.) 
ledoulxiana Bgt. 
obtusa Bgt. . . . 
timida Bgt. . . . 
singularis Bgt. . 
bourguignati Giraud 
crassilabris Bgt. . 
lechaptoisi Ancey 
Tanganyika 
Genus Hirthia Ancey. 
littorina Ancey .... Tanganyika 
globosa Ancey .... 
