Since 2001, about 5700 specimens stored at the Stazione Zoologica Anton Dohrn Napoli Museum have been archived as a Zoological Collection Database (http://szn.i.hosei.ac.jp). Each specimen in the database contains label information, an image of the container and a 3D object movie thus allowing the virtual reproduction of its morphological outline. Also, documents related to museum activities are digitally archived in the database and linked to each specimen. This makes it possible to understand historical museum activities such as collection data, assignment of accession numbers and relabeling processes. None of this information is written on labels.