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renti (spec. nov.), Alexandrina, Lavigeriana (spec. 
nov.), africana, Debaizei; Paysa Randabeli (spec. 
nov.), Coulboisi (spec. nov.); PLanorsis sudanicus, 
Tanganikanus (spec. nov.), Adowensis, Monceti (spec. 
nov.), Lavigerianus (spec. nov.), Bridouxianus (spec. 
nov.); PLanorsuza Tanganikana; NeorHauma Tanga- 
nikanum, Bridouxianum, Giraudi, Servainianum, bica- 
rinatum, Pelseneeri (spec. nov.), Jouberti (spec. nov.), 
euryomphalus (spec. nov.), Vysseri (spec. nov.); 
Vivipara Brincatiana (spec. nov.), Bridouxiana (spec. 
nov.); CLeoparra Guillemeti, Jouberti (spec. nov.); 
Byrania multisulcata (spec. nov.); Bripouxra Giraudi, 
Villeserriana, costata, Reymondi; Barzea Giraudi; 
Srekia zonata, Duveyrieriana, Grandidieriana, Came- 
roni (spec. nov.), Giraudi, Hamyana, Reymondi; 
AmpuLcariA Bridouxi (spec. nov.), ovata; Mecapomus 
Jouberti (spec. nov.), sinistrorsus; LEroya Bourgui- 
gnati; TanGanikiA Fagotiana, opalina {spec. nov.}, 
Giraudi ; CamsrerrA (nov. gen.) rufofilosa, Maunoiriana, 
ovoidea, Jouberti(spec.nov.); HAUTTECŒURIA Hamyana, 
Burtoni (spec. nov.), Moineti (spec. nov.), macros- 
toma (spec. nov.), Giraudi, Milne-Edwardsiana, Char- 
metanti (spec. nov.), soluta, Brincatiana {spec. nov.), 
singularis, Jouberti (spec. nov.), Duveyrieriana, Rey- 
mondi, Maunoiriana, Levesquiana ( spec. nov.), Locar- 
diana (spec. nov.), Lavigeriana (spec. nov.), Servai- 
niana (spec. nov.), Cameroni (spec. nov.), pusilla 
(spec. nov.), eximia, Cambieri, Bridouxiana (spec. 
nov.), minuta; HyLacanrua Horei, longirostris, Jou- 
berti, Bourguignati; Liunorrocuus Kirki, Thomsoni, 
Giraudi, cyclostoma; SyrxoLopsis lacustris, Hamyana, 
Grandidieriana, Anceyana, Giraudi, minuta; GirauDIA 
præclara, Grandidieriana, Lavigeriana; Reymonpra 
Horei, Giraudi, Jouberti (spec. nov.), Monceti (spec. 
