@article{NARMS:SourceID:136926, author = {Middendorff A.T. von}, journal = {Mémoires de l’Académie Impériale des Sciences de Saint-Pétersbourg, ser. 6, Sciences Naturelles}, note = {Starting from 1835 the 6th series of Mémoires is split in two parts, 1. Sciences mathématiques et physiques and 2. Sciences Naturelles. This results in a double numbering, this being vol. 6 of Sciences Naturelles and vol. 8(2) of the overall journal.
}, title = {Beiträge zu einer Malacozoologia Rossica. III. Aufzählung und Beschreibung der zur Meeresfauna Russlands gehörigen Zweischaler.}, url = {http://biodiversitylibrary.org/page/29015377}, year = {1849} }