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morphology of a starfish click to hear : morphology of a starfish

Starfish: carnivorous echinoderm found in the ocean depths; it generally has five arms, which allow it to crawl slowly along surfaces.
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See morphology of a starfish in : french | spanish
tube foot central disk spine eyespot madreporite arm

tube foot click to hear : tube foot

Small flexible tube extending and retracting with the action of the ampulla; it mainly allows the organism to move about, anchor itself to a support and capture its prey.

central disk click to hear : central disk

Central region of the body; the starfish’s arms are attached to it.

spine click to hear : spine

More or less movable outgrowths of calcareous plates forming the skeleton and enabling the starfish to ward off its predators.

eyespot click to hear : eyespot

Small light-sensitive structure located at the terminal end of each arm, allowing it to locate surfaces and prey.

madreporite click to hear : madreporite

Porous dorsal plate that allows water to enter the body; it connects the ambulacral ossicle to the outside world, and thus ensures locomotion.

arm click to hear : arm

Movable appendage radiating around the central disk; it has a mainly tactile and olfactory function. The starfish can regenerate an amputated arm.