Henricia leviuscula
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Henricia leviuscula, commonly called the Pacific blood star, is a species of sea star found along the Pacific coast of North America.
Henricia leviuscula Rialto Beach
madreporite
Henricia leviuscula
Pedicellaria
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A pedicellaria is a small wrench- or claw-shaped appendage with movable jaws, called valves, commonly found on echinoderms, particularly in sea stars and sea urchins.
Henricia leviuscula
…between the rays, but the rays are not mottled. They commonly have 5 rays (occasionally 4–6). The rays are smooth and appear smooth due to the lack of pedicellariae and spines. The species is relatively small; the diameter is usually over 8 cm and rarely gets larger than 12 cm. As with all seastars the blood star…
Pedicellaria of Acanthaster planci
Aboral surface of an Asterias forbesi sea star showing ring of pedicellariae surrounding spine
The dangerous flower urchin in Taiwan, with its long flower-like venomous pedicellariae
Close-up of flower urchin pedicellariae