Dr. Murai Éva - Gubányi András szerk.: Parasitologia Hungarica 27. (Budapest, 1994)

- Age of the host species; Body mass of the host species; Morphological characters of the host species. Currently four numeric fields are included into the record structure for morphometric variables; Codes of collecting data (country, settlement and locality). They are also coded by the same method as the host species and names are visualized by recalling procedures from the auxiliary databases; Collection date separated into three fields (day, month, year); Fig. 2. Record structure of the file containing the collection data Fig. 3. Selection of the appropiate code and name for the family of the host species by a look-up window.