See text Sterechinus is a genus of sea urchins in the family Echinidae.

Members of the genus Sterechinus have compound ambulacral plates that are trigeminate (composed of three elements).

The area of narrow plates around the mouth is small and the buccal notches are shallowly grooved.

[2] The type species of this genus is Stirechinus scillae which was first described from a fossil by Pierre Desor in 1856.

Stirechinus scillae lived from the Late Miocene to the Plio-Pleistocene and further fossils have since been found in France, Sicily and Malta.