539 



Limnea hydroriga, Mart. 



— obtusa, Kob. 



Groupe Intermedia 



Limnea angustana, Millière. 



— Millieri, Bourg. 



Groupe Vulgarisiana 



Limnea vulgaris, Pfeifter. 



— succinea, Nilss. 



— — var. Camousi, Caziot. 



— — var. minor, Caziot. 



— — var. major, Caziot. 



— Rochi, Fér. 



— crassa, Bourg. 



— lacustrina, Serv. 



— crymasca, Bourg. 



— Guebhardi, Caziot. 



— nubigena, Bourg. 



— rosea, Gall. 



Groupe Peregriana 



Limnea peregra, Muller. 



— — var. attenuata, Clessin 



— apricana, Bourg. 



— stenostoma, Bourg. 



— Langsdorffi, Bourg. 



— frigida, Cliarp. 



— meridionalis, Loc. 



— Maureliana, Bourg. 



— nivalis, Bourg. 



— UUipitschi, West. 



— (nitida, Ziegler.) 



— Mauryi, Caziot. 



— parva Gaz. (parvula Loc). 



Groupe Palustriana 



Limnea palustris, Muller. 



— Renoufi, Serv. 



Limnea contorta, Bourg. 



— limbata, Bourg. 



— muriatica, Bourg. 



— fusca, Pfeiffer. 



— hœmastoma, Bourg. 



— vulnerata, Kust. 



— beuillansis, Caziot. 



Groupe Truncatuliana 



Limnea truncatula, Muller. 



— — var. minor, M. T. 



— gingivita, Goupil. 



— pumila, Loc. 



— Moquini, Loc. 



— faliconica, Caziot. 



— Lafayi, Caziot. 



— Grimaldii, Caziot. 



— subtruncatula, Caziot. 



Genre Physa Drap. 



Section Bulinus Adans 

 Groupe Fontinaliaua 



Physa fontinalis, L. 



— acuta, Drap. 



— castanea, M. T. 



— Saint-Simoni, Fagot. 



— Mamoi, Benoit. 



— acroxa, Fagot. 



— dilucida, Let. 



— hypnorum, L. 



Groupe Isidora Erenhb. 

 Physa contorta, Michaud. 



Genre Planorbis Guettard 



Section Tropidiscus Stein. 



Groupe Carinatiana 



Planorbis umbilicatus, Muller. 



— submarginatus, G. et J. 



