Arachnids that dwell in or migrate to any part of the North American continent, except Hawaii, which has its own section.
Arachnids of Greenland and adjacent Atlantic islands.
Arachnids of the Mexican Holarctic.
Arachnids of the Gulf of Maine.
Disclaimer: This list combines species from several endangered species lists. Using the total
count of species found on this site as an official count of endangered species of the world is not recommended. For more
information on what creatures are listed on this site, please visit our About EEC page.