Host-Parasite database

Quarter of a million host-parasite records, detailing helminth parasites their associated host species and locality, extracted from 28,000 references.


In 1922 Dr H.A. Baylis, then head of what today is the Parasitic worms group, devised a Host-Parasite Catalogue in which he recorded the host-parasite associations published in the scientific literature. The catalogue, which is in manuscript form, was maintained by the group staff until 1988. It contains lists of the helminth parasites recorded under genus of host and is fully cross-referenced with parasite-host and bibliographic files. By 1988 data had been extracted from more than 70,000 references.

Between 1988 and 2003 new records were entered into a computerised database which includes additional details on host-species and locality. This database includes more than a quarter of a million host-parasite records extracted from 28,000 references. A partial implementation [lacking details on synonymy, comments (e.g. larva) and subject (keywords)] can be searched on-line.

  • Ansiakis
    Host-parasite database

    Search the database for species of parasitic worms, their hosts and their primary citations.

Contact us

For more information contact:

Dr David Gibson 
Division of Parasites and Vectors,
Department of Life Sciences,
The Natural History Museum,
SW7 5BD,



We accept no responsibility for the accuracy of these data. Errors in source publications and data-entry do occur. Users are advised to use the information as a guide and to check the original publication.This version dates from the end of 2003: Use of this database should be cited in publications: Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London. URL.