Varunid
Guides
Hemigrapsus
Hemigrapsus is a genus of varunid crabs containing fifteen recognized species. The genus is naturally distributed almost exclusively in the Pacific Ocean, with one species endemic to the Atlantic coast of South America. Two species—H. sanguineus and H. takanoi—have been introduced from East Asia to the North Atlantic region, where they have established invasive populations along European coasts and the eastern United States. One species, H. estellinensis, is considered extinct; it was endemic to a hypersaline spring in the Texas Panhandle.