79. 



SOCIÉTÉ ROYALE MALACOLOG1QUE DE BELGIQUE 



II 



M 



11 



12. 



13. 



78. 



1. 



2. 



70. 



1. 



77. — 



1. 



2 

 70. 



1. 



2. 



3. 

 79. 



1. 



2. 



3. 

 80. 



1. 



9 



I! 



L. 



D 



ai. — 



1. 



2. 

 «2. ■ 

 1. 

 2. 

 3. 

 4. 



85. 



1. 



o 



3. 

 4. 

 5. 



6. 

 7. 

 8. 

 9. 



M 



11 



. opercularis, Desh. 



- alticosta, Cossm. 



- tryensis-, Cossm. 



MlTRl'I.ARIA. 



. Boutillieri, Cossm. 



- Bcrnayi, Cossm. 

 Truncatella. 



. antediluviana, Desh. 



- distcnsa, Cossm. 

 Bruki.laia. 



. Fiseheri, do Laub. et Carez. 



- Mariée, de Laub. et Cnroz. 

 Leptopoma. 

 helicinfieforme, Boissy. 

 Dutemploi, Desh. 

 Morleti, Cossm. 

 Craspkdopoma. 

 eonoideam, Boissy. 



■ insuetum, Désh. 



Matheroni, Desh. 



Dissostoma, Cossm. 1883. 

 . mu mi a, Lamk. 



• spamacense, Desh. 



Megalqmastoma. 

 . Arnouldi, Michaud. 



• eurybasis, Cossm. 

 Hartmanma. Newton, 1891. 

 . modica, Desh. 



- parvula, Desh. 



- ressonensis, de Raine. 



- proxima, Cossm. 

 Assiminka. 



conica, Prévost, 

 contracta, Cossm. 

 crassa, Desh. 



gland inensis, de Laub. et Carez. 

 crassilabris, Desh. 

 goniophora, Morlet. 

 stenochora, Cossm. 

 eburnoides, Cossm. 

 turgidula, Cossm. 



A. 



84. — Vai.vata. 



1. Valvata [s. s ) Leop'oldi, de Boissy. 



2. — inflexa, Desh, 



3. V. (Cincinnâ) Michâudi, Desh. 



4. — Trigerij Desh. 



5. — parvula. Desh. 



G. — Bezançoni, de Laub. et Carez 

 7. — Bouryi. Cossm. 

 8a. — Paudina. 



1. P. aspersa. Michaud. 



2. — Orbighyi, Desh. 



3. — suessoniensis, Desh. 



4. — intermedia, Desh. 



5. — proavia, Desh. 



0. — rimata, Michaud. 



7. — Desnoyersi, Desh. 



8. — obliquata, Desh. 



9. — inaspecta, Desh. 



10. — distinguenda, Desh. 



11. — Matheroni, Desh. 



12. — novigentiensis, Desh. 

 80. — Hydrobia. 



1 . Hydrobia (5. s.) incerta, Desh. 



2. IL [Ecrobia) sparnacensis, Desh. 



3. — subulata, Desh. 



4. — nitens, Desh. 



5. — sextonus, Lamk. 



6. — conulus, Lamk. 



7. pyramidalis, Brard. 



8. — Heberti, Desh. 



9. — pusilla, Brongn. 



10. — Chedevillei, Morlet. 



11. — Laubrierei, Cossm. 



12. IL [Polycirsus) tuba, Desh. 



13. — varicosa, Ch. d'Orb. 



14. — cyclostonifeformis, Ch. d'Orb. 



15. — Bouryi, Cossm. 



87. — Sellia.. 



1. S. pulchra, de Raine. 



88. — Bithinei.la. 



1. Bithinella [s. s.) pulchra, Desh. 



2. — mutata, Cossm. 



