The key difference between starfish and brittle star stems from their mode of movement. Starfish move by tube feet whereas brittle star moves by flapping their arms in the form of walking.
Starfish and brittle star belong to the Phylum Echinodermata which consists of exclusively marine organisms. They belong to two different classes as Asteroidia and Ophiuroidea, respectively. They are very colorful organisms. Both these organisms are capable of living in the shallow waters. Moreover, both are either predators or scavengers.
1. Overview and Key Difference
2. What is Starfish
3. What is Brittle Star
4. Similarities Between Starfish and Brittle Star
5. Side by Side Comparison – Starfish vs Brittle Star in Tabular Form
What is Starfish?
Starfish or sea star belongs to the class Asteroidea of the Phylum Echinodermata of the Kingdom Animalia. In fact, they are very colorful organisms. They are exclusively marine and are present mostly in the shallow seas. Furthermore, they show penta-radial symmetry and have five arms that radiate from the central disk. The number of arms per starfish may vary.