• Astropecten commonly called Star fish.

• Pentagonal, strongly flattened and radially symmetrical.

• Body consists of a central disc and 5 symmetrically arranged radial arms.

• Predatory carnivore.

• Well developed upper and lower surface.

• Mouth contains soft opening called peristomial membrane.

• Dormal branchiae, peristomial gills, genital bursa and respiratory tree present.

• Tube feet for locomotion.

• Sexes are separate.

• Arms are bordered by the marginal spines.