from the GNU version of the Collaborative International Dictionary of English
- n. A genus of extinct Merostomata, found in Silurian rocks. Some of the species are more than three feet long.
from The Century Dictionary and Cyclopedia
- n. The typical genus of Eurypteridæ. E. remipes is an example.
- n. A genus of hesperid butterflies, the type of which is E. gigas of the Peruvian Andes.
Sorry, no etymologies found.
Restorations in plaster of paris of the fossil crustaceous eurypterus and hughmilleria were also exhibited.