VI PRAEFATIO. 



Et iterum monere necesse est, Monographiam meam non esse 

 systema naturale Stylommatophororum, sed potius methodum 

 conchologicam , inveniendis et determinandis speciebus incognitis 

 vel dubiis quantum fiori poterat, adaptatam, 



Praeterea, Bone Lector, conferas, quae in Praefationibus 

 1848 et 1853 proposui. 



Cassellae, mense Novembri 1858. 



I.. Pfeiifer, Dr. 



Operum citatornm enumeratio continuata. 



Adanis, Henry and ArtJiur, Tlie genera of recent Mollusca; 



arranged according to their organizalion. London. Part XIX. 



Jan. 1855. p. 100—124. pl. 73 — 76; XX. Febr. 1855. 



p. 125—156. pl. 77 — 80; XXL Apr. 1855. p. 157 — 188; 



XXII. Jun. 1855. p. 189 — 220; XXIIL Sept. 1855. p. 221—227. 

 Albers, J. Clir. , Malacogrophia Maderensis, sive enuraeratio MoIIu- 



scorum quae in insulis Maderae et Portus Sancti aut viva ex- 



stant aut fossilia reperiuntur. Cum 17 tab. Berol. 1854. 

 Annals of the Lyceum of natural history of New-York. 1854 — 1857. 

 Betta, Ed. Cav. de, e Martinati, P., Catalogo dei MoIIuschi terrestri 



e fluvialili viventi nelle provincie Venete. Verona 1855. 

 Bielz, E. A., Beitrag zur Kenntn. der siebenbiirg. Land- u. Siiss- 



wassermollusken. Aus: Verhandl. u. Mittheil. d. siebenb. Vereins 



f. Naturwiss. IV. 1853. 



Malakologische Notizen aus Siebenbiirgen. Aus: Verhandl. u. 



Mittheil. d. sieb. Vcr. 1856. Nr. 12. 



IJinney, Amos, The terrestrial air-breathing Mollusks of the United 

 States and the adjacent territories of North America. Edited by 

 Aiig. A. Gould. L II. 1851. IIL 1857. 



Binney, W. G. , Descriptions of terrestrial shells of North America, 

 by Thomas Say. Philad. 1856. 



Bourguignat, J. R., Testacea novissima, quae CI. de Saulcy in 

 itinere per orientem annis 1850 et 1851 collegit. Lutet. 1852. 

 (Voyage aulour de la Mer Morte et dans les terres bibliques, 

 execute par F. de Saulcy, Atlas. Quinzieme livraison.) 



Catalogue raisonne des MoIIusques terrestres et fluviatiles 



recueillis par M. F. de Saulcy pendant son voyage en Orient. 

 Paris 1853. 



