Enumeratio operum citatorum. 
Adams, Arthur. À Monograph of Scarabus; in Proc. Zool. Soc. Lond, 
1850. p. 147. 
— et Reeve. The Zoology of the Voyage of H. M. S. Samarang. 
Mollusea. Pt. III. 1850. 
Adams, C. B, in Annals of the Lyceum of natural history of New-York. 
1852. 
— Contributions to Conchology. Vol. I. Nr. 1—12. 1849 —1852. 
Adams, Henry et Arthur. A Monograph of Plecotrema; in Proe Zool. 
Soc. Lond. 1853. p. 120. 
— A Monogr. of Ellobium and Melampus; ibid. 1854. p. 7; Cassi- 
dula p. 31; Alexia p. 32; Carychium p. 33; Ophicardelus 
p. 34; Marinula p. 35. Pedipes et Leuconia p. 36. 
— The genera of recent Mollusca; arranged according to their orga- 
nization. 1853 — 506. 
Adanson. Histoire naturelle du Sénégal. Coquillages. Paris 1757. 
Agassiz, L. Nomenclator zoologicus. Mollusca. Fasc. IX, X. 1846. In- 
dex universalis in fasc. XII. 1847. 
Alder, J. Catal. etc. in Transact. Nat. Hist. of Northumb. 1830. 
Alten, J. W. v. Syst. Abhandl. üb. d. Erd- u. Flusskoncehylien um Augs-. 
burg. 1812. 
Anton, H. E. Verzeichn. der Conchylien etc. 1839. 
D'Argenville. La Conchyliologie, augmentée de la Zoomorphose. 1757. 
Audouin, V., in Description de l'Egypte. Vol. XXII, 1827. 
Beck, H. Index molluscorum praesentis aevi Musei princ. aug. Christiani 
Friderici. Fasc. I. 1837. 
Benson, W. H., in Journal of the Asiatic Society of Bengal. V. 1836. 
Berthold, A. A. Latreilles natürliche Familien des 'Thierreichs. X Aus 
d. Franzós. Mit Anmerk, und Zusàtzen. 1827. 
Betta, Ed. (Nob. De) Malacologia terrestre e fluviatile della Valle di 
Non nel Tirolo italiano. 1852. 
— et Martinati. Catalogo dei Molluschi terrestri e fluviatili viventi 
nelle provincie Venete. 1855. 
Binney, A. The terrestrial air- breathing Mollusks of the United States, 
