We assembled occurrence records (presence-only) for all four horseshoe crab species in Asia and Eastern America from our own observations, collaborators, scientific networks as well as through publishing a scratchpad site at http://horseshoecrabs.myspecies.info/. For many species, numerous distribution records exist in the literature, and we manually geo-referenced additional occurrence data from these sources.

GBIF url: https://www.gbif.org/dataset/86c1974b-04c1-49c4-8652-954fc8d30d4b
Homepage: https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadat…
Citation: Vestbo, Stine; Obst, Matthias; Quevedo Fernandez, Francisco; Intanai, Itsara; Funch, Peter; (2017): Horseshoe crab distribution records from East America and Asia https://dx.doi.org/10.14284/293 accessed via GBIF.org on 2025-10-28.