`Sea Star` redirects here. For other uses, see SeaStar disambiguation. Starfish Temporal range: Ordovician–Recent PreЄЄOSDCPTJKPgN Fromia monilis Seastar Fromia monilis Scientific classification e Kingdom: Animalia Phylum: Echinodermata Superclass: Asterozoa Class: Asteroidea De Blainville, 1830 Child taxa and orders Infraclass Concentricycloidea Peripodida Superorder Forcipulatacea Brisingida Forcipulatida Superorder Spinulosacea Spinulosida Superorder Valvatacea Notomyotida Paxillosida Valvatida Velatida[1] †Calliasterellidae †Trichasteropsida[2] Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea. Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or `basket stars`. About 1,500 species of starfish occur on the seabed in all the world`s oceans, from the tropics to frigid polar waters. They are found from the intertidal zone down to abyssal depths, 6,000 m 20,000 ft below the surface. Starfish are marine invertebrates. They typically have a central disc and five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube feet operated by a hydraulic system and a mouth at the centre of the oral or lower surface.
CATEGORIES
EXCLUSIVE
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
KEYWORDS
also amazon animals applied aquarium asteroidea basket being belonging blue bluefish bright brittle cichlid class colorful colors colour common corals correctly echinoderms exotic finds fish fishtank flavescens footprint forensic frequently gold goldfish guppy impresion investigation marine names nemo ocean ophiuroids oscar pirana piranha police referred saltwater scene sealife seastar seastarstarfihs security shoeprint silever snow starfish stars starshaped tail tang tank these tropical tropicalfish underwater usage version warm water which white with yellow zebrasoma
More images on Dreamstime
Similar Images
More images by the same author
1 week free trial. Any size, for free
Renews at $25/month, cancel or upgrade at any time
Click here for your free trial!
240,239,495 images | 1,212,918 contributors | 53,246,492 total users