BioImages: The Virtual Field-Guide (UK)

Species 2000 - indexing the world's known species: http://www.sp2000.org/

An international project to checklist the world's species: "Species 2000 has the objective of enumerating all known species of organisms on Earth
(animals, plants, fungi and microbes) as the baseline dataset for studies of global biodiversity."

Includes a useful taxonomic tree.

Species 2000 is based at University of Reading, UK.

Malcolm Storey

Taxonomic Scope