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Pisaster giganteus, the giant sea star, giant spined star, or knobby sea star is a species of sea star that lives along the western coast of North America from Southern California to British Columbia. It makes its home on rocky shores near the low tide mark. It preys on mollusks. It can grow as large as 24 in (61 cm) in diameter.
Pisaster brevispinus, commonly called the pink sea star, giant pink sea star, or short-spined sea star, is a species of sea star in the northeast Pacific Ocean. It was first described to science by William Stimson in 1857. [1] The type specimen was collected on a sandy bottom, 10 fathoms (18 m) deep, near the mouth of San Francisco Bay.
Ochre sea star at low tide, Saltspring Island, British Columbia. Pisaster (from Greek πίσος, "pea", and ἀστήρ, "star" [1]) is a genus of Pacific sea stars that includes three species, P. brevispinus, P. giganteus, and P. ochraceus. Their range extends along the Pacific coast from Alaska to southern California in the intertidal zone.
Get a glimpse of Gerry's ink as he slips into the yacht hot tub.
Marthasterias glacialis is a fairly large starfish with a small central disc and five slender, tapering arms. Each arm has three longitudinal rows of conical, whitish spines, usually with purple tips, each surrounded by a wreath of pedicellariae.
Echinaster spinulosus is a medium sized sea star with five long tapering arms, round in cross section, attached to a central disc. Near one edge of this is the madreporite, a structure used for drawing in water to replenishing the water vascular system.
The head of Bathynomus vaderi, a deep-sea crustacean found off the coast of Vietnam, resembles the helmet of "Star Wars" villain Darth Vader, according to researchers who newly identified the species.
The red cushion star is the largest sea star found within its range, sometimes growing to about 50 centimetres (20 in) in diameter. It usually has five thick, broad arms projecting from a broad cushioned disc but some specimens have four, six or seven. The upper surface is hard and is covered with blunt spines.