Clypeaster euclastus

{{Short description|Species of sea urchin}}

{{Speciesbox

| image = Clypeaster euclastus (USNM 1151419) 001.jpeg

| image_caption =

| genus = Clypeaster

| species = euclastus

| authority = Clark, 1941

}}

Clypeaster euclastus is a species of sea urchins of the family Clypeasteridae. Their armour is covered with spines. Clypeaster euclastus was first scientifically described in 1941 by Hubert Lyman Clark.Kroh, A. (2010). Clypeaster euclastus (Clark, 1941). In: Kroh, A. & Mooi, R. (2010) [http://www.marinespecies.org/aphia.php?p=taxdetails&id=422495 World Echinoidea Database]. at the World Register of Marine Species.