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Thromidia catalai Heavy Starfish PNG by Nick Hobgood.jpg
Thromidia catalai
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Echinodermata
Class: Asteroidea
Order: Valvatida
Family: Mithrodiidae
Genus: Thromidia
Pope & Rowe, 1977

Thromidia is a genus of starfish in the family Mithrodiidae.


Description and characteristics

These are extremely massive sea stars with 5 sausage-shaped arms, containing probably the heaviest species of Asteroidea, up to 6 kg. [1]

List of species

According to World Register of Marine Species :

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  1. Mah, Christopher L. "What Are the World's LARGEST Starfish ?". Th Echinoblog.