description Clypeaster japonicus Overview
Clypeaster japonicus is a species of sea biscuit, an irregular type of flattened sea urchin belonging to the family Clypeasteridae. First described by the German zoologist Ludwig Döderlein in 1885, the marine invertebrate is native to the coastal waters of Japan. Like other sea biscuits, it burrows into sandy sea floors and utilizes its specialized tube feet to filter organic matter from the sediment for sustenance.
help Clypeaster japonicus FAQ
What kind of animal is Clypeaster japonicus?
It is an irregular sea urchin in the sea-biscuit genus Clypeaster. Unlike a round, spiny reef urchin, it has a flattened test adapted for living on or within sandy seabeds.
Why is Clypeaster japonicus called a sea biscuit?
Sea biscuits have thick, rounded, biscuit-like skeletons and a five-petaled pattern of respiratory tube-foot areas. They are close relatives of sand dollars but are generally more domed and robust.
Where was Clypeaster japonicus first found?
Its scientific name reflects its association with Japanese waters. German zoologist Ludwig Döderlein formally described the species in 1885.
What does Clypeaster japonicus eat?
Like other Clypeaster sea biscuits, it processes sand and sediment for small organisms and organic particles. Tube feet and spines help move food toward the mouth on the underside of the animal.
explore Explore More
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
