Stylocidaris badia H. L. Clark 1925
Family: Cidaridae	Order: Cidaroida
Locality: East China Sea, deep water, dredged by fishermen, 2008	Dimensions: 63 mm Ø x 41 mm
Same specimen before cleaning
Specimen came to me without taxon, but fits well with fig. 1550 of Sea Urchins III by Heinke Schultz, First Edition, Heinke & Peter Schultz Partner Scientific Publications