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dilatata, alg-ira ; Carychium minimum; Laimodonta 

 Firmini; Alexia enhalia (spec. nov.), Micheli, myo- 

 sotis, algerica, balearica, Cossoni (spec. nov.), dubia, 

 terrestris (spec. nov.), globulus (spec. nov.), Bivonœ, 

 Letourneuxi (spec. nov.), Pechaudi (spec. nov.); An- 

 CYLUS strigatus, Peraudieri; Limn^a Vatonni, trunca- 

 tula; Physa Brondeli, truncata, Brocchii, Raymon- 

 diana, contorta ; Planorbis marmoratas, submargina- 

 tus, subangulatus, agraulus, numidicus; Cyclostoma 

 sulcatum; Pomatias Belloiri (spec. nov.), Latasteaniis 

 (spec. nov.), Letourneuxi, tunetanus (spec. nov.), 

 Henoni (spec. nov.), euristoma (spec. nov.), cyclo- 

 nixius (spec. nov.), Rogeri (spec. nov.), euneus (spec. 

 nov.), monticola (spec. nov.), Doumeti (spec. nov.), 

 punicus (spec. nov.); Acme Letourneuxi, Benoit! ; 

 AssiMiNiA littorina; Bythinia Hagenmulleri (spec. 

 nov.), punica (spec. nov.); Ammcola singularis (spec. 

 nov.), Oudrefica (spec. nov.), paradoxa (spec. nov.), 

 Latasteana (spec. nov.), subscalaris fspec. nov.), by- 

 thinopsis (spec. nov.), cyrniaca, saharica, luteola, 

 Maceana, similis, pycnochcilia, Pomariensis, Dupote- 

 tiana, sterea (spec. nov.), globulina (spec. nov.), 

 Doumeti (spec. nov.), pycnolena, Letourneuxiana, 

 Barattei (spec. nov.), perforata, ragia (spec. nov.); 

 Bythinella limnopsis (spec. nov.), mauritanica (spec. 

 nov.), microcochlia (spec. nov.), punica (spec. nov.), 

 nana; Paludestrina Peraudieri, arenaria, Lhospitali, 

 eucyphogyra, acerosa, meca (spec. nov.), Cossoni 

 (spec. nov,), mecyna (spec. nov.), oxitata (spec. nov.), 

 procerula, acuta, Duveyrieri, Coutagnei, gracillima, 

 vitracea (spec. nov.), pachygaster, viridescens, arena- 

 rum, minoriciensis, leneumicra; Peringia punica (spec. 

 nov.), paradoxa (spec. nov.), tumida, solitaria (spec. 

 nov.), admirabilis (spec. nov.); Melania tuberculata ; 



