starfish

(redirected from Star fish)
Also found in: Dictionary, Thesaurus.

starfish:

see sea starsea star,
also called starfish, echinoderm of the class Asteroidae, common in tide pools. Sea stars vary in size from under 1-2 in. (1.3 cm) to over 3 ft (90 cm) in diameter. They are commonly dull shades of yellow or orange, but there are many brightly colored ones as well.
..... Click the link for more information.
.

Starfish

 

any one invertebrate of the class Asteroidea of the phylum Echinodermata. The body is in the form of a five-rayed (sometimes poly act, with up to 50 rays) star or pentagon. It measures from 1 cm to 1 m. Many starfish are brightly colored. The skeletal plates of the skin are armed with spines, needles, and sometimes pedicellariae. These bottom-dwelling animals crawl by means of numerous ambulacral feet. The majority of starfish are predators, feeding mainly on mollusks and other invertebrates. Some evert their stomachs, enveloping their prey and digesting it outside the body. Starfish are predominantly dioecious. They usually develop from free-swimming larvae (bipinnarias, brachiolariae), which undergo metamorphosis. Some starfish are viviparous. The ability to regenerate is highly developed.

There are more than 1,500 species of starfish, distributed in oceans and seas throughout the world (except waters of low salinity) to depths of 8.5 km. More than 150 species are found in the seas of the USSR. Some starfish are destructive in that they prey on commercially valuable mollusks (oysters, mussels), others, such as Acanthaster planci, feed on reef-forming corals. Starfish are known in fossil form from the Ordovician.

REFERENCES

Zhiznzhivotnykh, vol. 2. Moscow, 1968.
Hyman, L. H. The Invertebrates, vol. 4. New York-London, 1955.

starfish

[′stär‚fish]
(invertebrate zoology)
The common name for echinoderms belonging to the subclass Asteroidea.

starfish

any echinoderm of the class Asteroidea, such as Asterias rubens, typically having a flattened body covered with a flexible test and five arms radiating from a central disc
References in periodicals archive ?
Almost all of those surveyed correctly identified the star fish and the sea horse, but there was some confusion when it came to identifying the octopi and jelly fish.
Operating from its purpose Grimsby built factory with its own attached coldstore, Five Star Fish has committed to major investment in recent years and the site is now BRC A grade and Tesco accredited.
On January 19 Vicky Richardson from Five Star Fish wrote a letter of apology to Mr Jones.
With customers including Morrisons and Iceland as well as a number of leading pub and restaurant chains, Five Star Fish has doubled annual turnover to around GBP65 million in the past three years and employs 330 people at its Grimsby base.
The class included a hands-on demonstration of the habitats; the students were able to touch and look at various sea creatures, such as snails, hermit crabs, clams, star fish, sea urchins and rock crabs.
Serenic Software, and The Star fish Television Network.
In a few hours the ocean will pull back a hundred or more metres, exposing star fish, oysters, clams, crabs and a myriad other life forms.
Cool," Sierra said, then turning and pointing out another bright orange sunflower star fish to Taylor in an adjoining pool.
We accompanied Jamie as he snorkelled for sea urchins, star fish, octopi and sea cucumbers for his on-board aquarium.
While marine life art can really depict any life forms that exist in the world of water, including some species of birds, frogs and turtles, as well as coral reef, star fish and sea horses, certain subjects have revealed themselves to be more popular among collectors.
Twinkle Star Fish with Big Dipper Sauce: fish shaped like stars with vegetables and roasted potato wedges.
The children loved the touch pool; we had collected a few lagoon echinoderms, sea urchins, star fish, and other things that live around the coast, but most of them had never seen sea creatures up close before so they got very excited.