M ÉMOI IJ ES 



67 



26 

 54. 



1 



2 



3, 



1 

 2 



3 

 4 

 5 

 G 

 7, 

 S. 

 9. 



10. 



11. 



12. 



30. 



1. 



57. 



1. 



2. 

 38. 



1. 



2 



3. 



4. 



5. 



6. 



7. 



.8. 



9. 



10. 



39. 



1. 



2. 



3. 



4. 



C. Homalochilus miliaris, Cossin. 



— ErcYci.is. 

 E. jucundus, Desh. 



— Bezançoni, Cossm. 



— infraeocaenicus, Côssm. 



— Phasianella. 

 P. [Tricàlia) dissimilis, Desh. 



— Lamarcki, Desh. 



— Dunkeri, Desh. 



— Laubrierei, Cossm. 



— turbinoides, Lamk. 



— semistriata, Lamk. 



— tenuistriata, Desh. 



— succinseopsis, Cossm. 

 P. [Sleganovnphalus) picta, Desh. 



— parisiensis, d'Orb 



— herouvalensis, Cossm. 



— naticoides, Desh. 



— Aizyella. 

 A. suessoniensis, Desh. 



— Neritopsis. 

 N. parisiensis, Desh. 



— acutispira, Cossm. 



— Nerita. 

 N. (Péloronta) angystoma, Desh. 



— bicoronata, Desh. 



Nerita {s. s.) granulosa, Desh. 



— tricarinata, Lamk. 



— pentastoma, Desh. 



— Brimonti, Desh. 



— semilugubris, Desh. 

 N. [Oclontostoma) mammaria, Lamk. 



— Baudoin, Cossm. 



N. [Lissochilus] auversiensis, Desh. 



— Neritina. * 

 N. subornata, d'Orb. 



— vicina, Mellev. 



— Laubrierei, Cossm. 



— Dutemplei, Desh. 



— sincenyonsis, Desh. 



— globulus, Fér. 



— eonsobrina, Fér. 



8 



9 



10 



11 



12 



40. 



1. 



2. 

 41. 



1. 



2. 



42. 



1. 



2. 

 3. 

 45. 



1. 

 2. 

 3. 



4. 

 5. 

 6. 



7. 



8. 



9. 



10. 



11. 

 12. 

 18. 

 14. 

 15. 

 10. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 



. N. zonaria, Desh. 

 . — nucleus, Desh. 



— Bouryi, Cossm. 



— lineolata, Desh. 



— Passyi, Desli. 



— Vêlâtes. 



V. Schmidèli, Chemn. 



— equinus, Bezançon. 



— Tomostoma. 



T. neritoides, Desh. 



— rostratum, Cossm. 

 (Voir ci-après 133 e genre.) 



— Pyramidella. 



P. calvimontensis, Desh. 



— terebellata, Fér. 



— inaspecta, Desh. 



— Syrnola. 



S. [Orvia) umbilicatà, Desh. 



S. [Biptychus] clandestina, Desh. 



— emarginata, Cossm. 



— eburnea, Desh. 



— misera, Desh. 



— speciosa, Desh. 



— pupoides, Cossm. 

 (Voir ci-après n° 20.) 

 Syrnola [s. s.) Bernayi, Cossm. 



— nitida, Mellev. 



— polygyrata, Desh. 



(Voir ci-après n° 27.) 



— pra4onga, Desh. 



— spina, Desh. 



— microstoma, Desh. 



— spiculum, Desh. 



— angusta, Desh. 



— arcta, Desh. 



— parva, Desh. 



— acicula, Lamk. 



— climacina, Cossm. 



— ruellensis, de Raine. 



— Barreti, Morïet. 



— obesula, Desh. 



— goniophora, Cossm. 



