PLANCHE IV 



1-2. Lacuna (Epheria) Allixi Cossm. 



3-4. DUMASELLA PRETIOSA CoSSm. 



5-6. DUMASELLA GYMNA CoSSm. 



7-8. Lapparentia ventricosior Cossm. 

 9-10. Ceratia ? Ai.Lixi Cossm. 

 11-12. Paryphostoma Dumasi Cossm. 



13. Anisocycla Ali.ixi Cossm. 



14. Ceratia Dumasi Cossm. 



15-16. PsEUDOTAPHRUS BouRDOTi Cossm. 



17-18. RissoiNA (Zebinflla) Bureaui Cossm. 



19. EULIMA (Rostreiilimu) angystoma Desh. 



20-21. EuLiMA (Rostreulima) concinna Desh. 



22-23. Al VANIA Ali.ixi Cossm. 



24-25. PoLARiUM (SoLariaxis) canaliculatum Lamk. 



26-27. Rissoi.xA (Zebinella) l.evigatissima Desh. 



28-29. RiSSOINA AGATHOSTOMA Cossm. 



30. POTAMIDES PERDiTUS Bayan. 



31-33. LioTiA (Liotina) perplanata Cossm. 



34. Solariella subcraticulata Cossm. 



35. id. var. acuticarina Cossm 

 36-37. Allixia acicularis Cossm. 



38. Hemico.n'us RHYTiDOPHORUS Cossm. 



39. BoRSONiA {Cordieria) Bl'reaui Cossm. 

 40-41. Valvat.\ planibasis Cossm. 



42-44. LiOTiA (Liotina) Malescoti Vassem". 

 45-46. Valvata (Cincinna) Bourdoti Cossm. 

 47. RiSSOINA (Zebinella) Bureaui Cossm. 



48-49. BITHINIA GÛUETENSIS Cossm. 



50-51. Potamides (ExechesUima) oampbonensis [Vass.]. 



52-53. Dentalium sui catum Lumk. 



54-55. Valvata {Cincinna) hydrobii^formis Cossm. 



56-57. EuLiMA (Margineulima) fallax Desb. 



58-59. ACROPHLYCTIS cf. CYLINDROIDES Cossm. 



60-61. Belosepia Blainvillei Desh. 



62-63. Neritina Bezieri Dalimier. 



64-65. EuLiMA (Vitreoliiia) erronea Cossm. 



