— 164 — 



nov,), Bridouxiana (spec. nov.), pyramidalis (spec. 

 iiov.); ITonEA (nov. gen.), tanganikana (spec. nov.); 

 Melania tuberculata, admiiabilis ; Bourguignatia Bri- 

 douxi (spec. nov.), Jouberti (spec. nov.), imperialis ; 

 Ramjabelia catoxia (spec, nov.), Ilatnyana; Joubertia 

 (nov. gen.) Baizeana, spinulosa, Stanleyana ; Lavigeria 

 (nov. gen.) diademata (spec. nov.), coronata (spec. 

 nov.), grandis, callista (spec. nov.), Jouberti (spec. 

 nov. ), pereximia (spec. nov.), combsa (spec. nov.), 

 Ruellaniana (spec. nov.); Edgaria (nov. gen.) pauci- 

 costata, callopleuros, Monceti (spec. nov.), littoralis 

 (s])ec. nov.) ; Paramelania Damoni, crassigranulata, 

 infralirata (spec. nov.), egrcgia, obtusa (spec. nov,), 

 Duveyrieriana, Lcdonlxiana, formosa (spec. nov.), 

 Cameroniana, singularis (spec. nov.), Bourguignati, 

 Reymondi, timida (spec. nov.), Milne-Edwardsiana, 

 Lessepsiana, palustris (spec. nov.), Grandidieriana, 

 nassatella (spec. nov.), lacunosa (spec. nov.), Randa- 

 beli (spec. nov.), nassa, Smithi (spec. nov.), venusta 

 (spec. nov.), Mabilliana (spec. nov.), Livingstoniana, 

 nassatiformis (spec. nov.), limnœa (spec. nov.), pul- 

 chella, elongata (spec. nov.), Giraudi, Locardiana, 

 crassilabris, bythiniformis (spec. nov.), Servainiana, 

 arenarum (spec. nov.) ; Stanleya neritoides ; Coulboisia 

 (nov. gen.) Giraudi, Smithiana; Rumella globosa 

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

 Giraudi, Jouberti (spec. nov,), Lavigeriana(spec. nov ). 

 Granoidieiua elongata, Giraudi, mira, callista (spec. 

 nov.), rhynchonella (spec. nov.), Servainiana, Horei, 

 insignis, rotundata, Burtoni, Smithi, Anceyi, cyrc- 

 nopsis, Hauttecœuri, singularis (spec. nov.), Thom- 

 soni, Ujijensis, corbicula, incarnata, granulosa, Bour- 

 guignati (spec. nov.), tanganikana, Locardiana, gravi- 

 dœ, rostrata; Corbicula tanganikana ; Pisidium Giraudi, 



