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nov.), Spekiana ; Neothauma Tanganikanum, Bri- 

 douxianum, Servainianum, Giraudi (spec. nov.), bica- 

 rinatum; Bridouxia (nov. gen.) Giraudi (spec. nov.), 

 Villescrriana (spec. nov.), costata (spec. nov.), Rey- 

 mondi (spec. nov.); Baizea (nov. gen.) Giraudi (spec. 

 nov.); Spekia Giraudi (spec. nov.), zonata, Duveyrie- 

 riana (spec. nov.), Hamyana (spec. nov.), Reymondi 

 (spec. nov.), Grandidierana (spec. nov.); Tanganikia 

 Fagotiana (spec. nov.), Giraudi (spec. nov.), Maunoi- 

 riana (spec. nov.), ovoidea (spec, nov.), globosa (spec. 

 nov.); Hauttecœuuia (nov. gen.) Hamyana (spec. nov.), 

 Giraudi (spec. nov.), Milne-Edwardsiana (spec. nov.), 

 soluta (spec. nov.), singularis (spec. nov.), Duveyrie- 

 riana (spec. nov.), Reymondi (spec. nov.), Maunoi- 

 riana (spec. nov.), eximia (spec. nov.), Cambieri 

 (spec. nov.), minuta (spec. nov.); Limnotrochus Thom- 

 soni, Giraudi (spec. nov.), cyclostoma (spec. nov.); 

 GiRAUDiA (nov. gen.) prœclara (sjjec. nov.), Grandi- 

 dieriana (spec. nov.); Reymondia (nov. gen.) Horei 

 (spec. nov.), Giraudi (spec, nov.); Bourguignatia im- 

 perialis; Paramelania grandis, paucicostata, callopleu- 

 ros (spec. nov.), Grandidieriana (spec. nov,), Hamyana 

 (spec, nov,), Reymondi (spec. nov.), Bourguignati 

 (spec. nov.), Baizeana (spec. nov.), Stanleyana (spec. 

 nov.), spinulosa (spec. nov.), nassa, Mihie-Edward- 

 siana (spec. nov.), Lessepsiana (spec. nov.), Duvey- 

 rieriana (spec. nov.), Cameroniana (spec. nov.), Le- 

 doulxiana (spec= nov.), egregia (spec. nov.), Giraudi 

 (spec. nov.), Locardiana (spec. nov.), Servainiana 

 (spec. nov.), crassilabris (spec. nov.), Livingstoniana 

 (spec. nov.), pulchella (spec. nov.); Stanleya (nov. 

 gen.) Giraudi (spec. nov,), Smitbiana (spec. nov.); 

 RuMELLA (nov. gen.) Giraudi (spec. nov,), Milne-Ed- 

 wardsiana (spec, nov.); Grandidieria elongata (spec. 



