By Sheetal Kumari | July 21, 2025
One of the largest in the world, with arm spans extending more than 4 feet, discovered deep within the Gulf of Mexico.
(Image: @cronicasdefauna/X)
A dense starfish with stout, sausage-shaped arms. Inhabiting the Indo-Pacific, it weighs more than 6 kilograms.
(Image: @Crinoidea_hk/X)
Recognizable by its long, thin arms and rapid motion, this Pacific Ocean creature reaches more than 2 feet in width.
(Image: @echinoblog/X)
Its other nickname is the sunflower sea star, and it measures up to 24 arms and more than 3 feet in diameter.
(Image: @HakaiInstitute/X)
The horned sea star is another name for it, and it is big and brightly colored and usually lives in shallow Indo-Pacific waters.
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Seen in the Caribbean, this one can grow to 20 inches and is usually found in peaceful sandy lagoons.
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Seventh as a starfish with a wide body and found in the Gulf of Mexico and the Atlantic, with a width of around 16 inches.
(Image: @echinoblog/X)
Spiny starfish common to southern Australia and New Zealand, frequently with multiple arms and larger than 2 feet.
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The crown-of-thorns starfish is big and spiny, with as many as 21 arms, and is most famous for feeding on coral reefs.
(Image: @Crinoidea_hk/X)
Known as the sand star, this species can grow large and is often found gliding over sandy seabeds in tropical Indo-Pacific waters.
(Image: @NUSReef)