Sun star
A species of Heliaster Scientific name : Heliaster helianthus Genus : Heliaster
Sun star, A species of Heliaster
Botanical name: Heliaster helianthus
Genus: Heliaster
Content
Description
Photo By Lawenai , used under CC-BY-SA-4.0 /Cropped and compressed from original 
Description
H. helianthus is a multi-armed starfish, the number of arms usually being in the range 28 to 39, and the diameter typically being between 16 and 20 cm (6 and 8 in). The aboral (upper) surface is brown with reddish tubercles while the oral (under) surface is white or yellowish-white. The disc is broad and the ossicles (plate-like components in the skin) in the proximal parts of the arms (closest to the disc) are connected to those of the neighbouring arms by connective tissue, forming inter-arm septa. This means that only a small part of each arm is free, the rest appearing to form part of the disc.
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Scientific Classification
Phylum
Echinoderms Class
Sea stars Order
Forcipulatidan sea stars Family
Heliasterid sun stars Genus
Heliaster Species
Sun star 
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