Sunflower sea star
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| phylum | Chordata | Sunflower sea stars can grow to have an arm span of 1 m (3.3 ft) in diameter. They are the second-biggest sea star in the world, only second to the poorly known deepwater Midgardia xandaros, whose arm span is 134 cm (53 in) and its body is 2.6 cm (roughly 1 inch) wide, although P. helianthoides is the largest known echinoderm by mass.
For more information, visit the Wikipedia entry. Get back to Starfish |
| class | Asteroidea | |
| order | Forcipulatida | |
| family | Asteriidae | |
| genus | Pycnopodia | |
| species | P. helianthoides |
