Common name: Echinoderms
Echinoderms, belonging to the phylum Echinodermata, are a fascinating group of marine animals that include species such as starfish, sea urchins, sand dollars, and sea cucumbers. These creatures are exclusively marine and are known for their radial symmetry, typically having a five-point symmetry, although some species can have more. One of the most distinctive features of echinoderms is their unique water vascular system, which functions in locomotion, feeding, and respiration. This system is a network of hydraulic canals that facilitate movement through the extension and retraction of tube feet.
Echinoderms play vital roles in marine ecosystems. Sea urchins, for example, are important grazers that help control algal populations on coral reefs. Starfish are often top predators in their environments, preying on mollusks and other invertebrates. Sea cucumbers contribute to the health of the ocean floor by recycling nutrients as they feed on detritus. This ecological significance makes echinoderms valuable not only for their biodiversity but also for maintaining the balance of marine habitats.
For aquarium hobbyists, echinoderms can be both intriguing and challenging additions. They require stable water conditions and a well-established tank to thrive. It's important to research the specific needs of each species, as their dietary and environmental requirements can vary significantly. Sea urchins, for example, may require supplemental feeding if algae are not abundant, while starfish may need specific types of prey. Additionally, echinoderms are sensitive to changes in water chemistry, so maintaining consistent water quality is crucial for their health.
- Common name: Crown-of-Thorns StarfishScientific name: Acanthaster planci
- Common name: Bannwarth's Sea CucumberScientific name: Actinopyga bannwarthi
- Common name: Spiny Sea CucumberScientific name: Actinopyga crassa
- Common name: BrownfishScientific name: Actinopyga echinites
- Common name: stone fish (holothurian)Scientific name: Actinopyga lecanora
- Common name: Surf redfishScientific name: Actinopyga mauritiana
- Common name: Plump sea cucumberScientific name: Actinopyga obesa
- Common name: brittlestarScientific name: Amphiura filiformis
- Common name: Feather starScientific name: Antedon mediterranea
- Common name: California Sea CucumberScientific name: Apostichopus californicus
- Common name: Warty sea cucumberScientific name: Apostichopus parvimensis
- Common name: Burton's StarfishScientific name: Aquilonastra burtoni
- Common name: Sand Sifting StarfishScientific name: Archaster angulatus
- Common name: Indo-Pacific Beach StarScientific name: Archaster typicus
- Common name: Northern Pacific SeastarScientific name: Asterias amurensis
- Common name: Northern Sea StarScientific name: Asterias rubens
- Common name: sheriff-badge sea starScientific name: Asteropsis carinifera
- Common name: Fire UrchinScientific name: Asthenosoma ijimai
- Common name: variable fire urchinScientific name: Asthenosoma varium
- Common name: Anderson's Sand StarScientific name: Astropecten andersoni
- Common name: Royal StarfishScientific name: Astropecten aranciacus
- Common name: Bispinosus Sand StarScientific name: Astropecten bispinosus
- Common name: Sand Sifting StarfishScientific name: Astropecten jonstoni
- Common name: comb starScientific name: Astropecten polyacanthus
- Common name: Giant Basket StarScientific name: Astrophyton muricatum
- Common name: Pale spine fire urchinScientific name: Astropyga magnifica
- Common name: Blue-spotted UrchinScientific name: Astropyga radiata
- Common name: New zealand sea cucumberScientific name: Australostichopus mollis
- Common name: Leopard Sea CucumberScientific name: Bohadschia argus
- Common name: Pale marbled sea cucumberScientific name: Bohadschia marmorata
- Common name: Brownspotted sandfishScientific name: Bohadschia vitiensis
- Common name: Lesser Sand DollarScientific name: Brissus latecarinatus
- Common name: groove burrowing urchinScientific name: Brissus unicolor
- Common name: long-spined urchinScientific name: Centrostephanus longispinus
- Common name: Long-spined Sea UrchinScientific name: Centrostephanus rodgersii
- Common name: Red box sea cucumberScientific name: Cercodemas anceps
- Common name: Red Brittle StarScientific name: Chaetaster longipes
- Common name: Granulated Sea StarScientific name: Choriaster granulatus
- Common name: Sand DollarScientific name: Clypeaster humilis
- Common name: Sand DollarScientific name: Clypeaster reticulatus
- Common name: sea biscuitScientific name: Clypeaster rosaceus
- Common name: sand dollarScientific name: Clypeaster subdepressus
- Common name: Sea CucumberScientific name: Colochirus crassus
- Common name: Thorny sea cucumberScientific name: Colochirus quadrangularis
- Common name: robust sea cucumberScientific name: Colochirus robustus
- Common name: Feather StarScientific name: Comaster nobilis
- Common name: Feather StarScientific name: Comaster schlegelii
- Common name: white starfishScientific name: Coscinasterias tenuispina
- Common name: pin-cushion sea starScientific name: Culcita novaeguineae
- Common name: cushion starScientific name: Culcita schmideliana
- Common name: Eccentric sand dollarScientific name: Dendraster excentricus
- Common name: long-spined sea urchinScientific name: Diadema antillarum
- Common name: Sea urchinScientific name: Diadema savignyi
- Common name: black longspine urchinScientific name: Diadema setosum
- Common name: Warty sea starScientific name: Echinaster callosus
- Common name: Luzon Sea StarScientific name: Echinaster luzonicus
- Common name: Red starfishScientific name: Echinaster sepositus
- Common name: sea-potatoScientific name: Echinocardium cordatum
- Common name: rock-boring urchinScientific name: Echinometra lucunter
- Common name: Rock Boring UrchinScientific name: Echinometra mathaei
- Common name: Reef UrchinScientific name: Echinometra viridis
- Common name: Urchin Spine SnailScientific name: Echinostrephus aciculatus
- Common name: Burrowing fine spine urchinScientific name: Echinostrephus molaris
- Common name: banded sea urchinScientific name: Echinothrix calamaris
- Common name: Diadema urchinScientific name: Echinothrix diadema
- Common name: common sea urchinScientific name: Echinus esculentus
- Common name: Pineapple Sea UrchinScientific name: Echinus melo
- Common name: Sand DollarScientific name: Encope emarginata
- Common name: Lion's Paw Sea CucumberScientific name: Euapta godeffroyi
- Common name: beaded sea cucumberScientific name: Euapta lappa
- Common name: Pencil UrchinScientific name: Eucidaris metularia
- Common name: slate pencil urchinScientific name: Eucidaris tribuloides
- Common name: Orange spotted purple sea starScientific name: Fromia elegans
- Common name: Ghardaqa Sea StarScientific name: Fromia ghardaqana
- Common name: Indian Sea StarScientific name: Fromia indica
- Common name: Red StarfishScientific name: Fromia milleporella
- Common name: Red Tile StarfishScientific name: Fromia monilis
- Common name: Red Sea StarScientific name: Fromia nodosa
- Common name: Red StarfishScientific name: Fromia polypora
- Common name: Egyptian sea starScientific name: Gomophia egyptiaca
- Common name: Egg CowrieScientific name: Gomophia watsoni
- Common name: Slate Pencil UrchinScientific name: Goniocidaris tubaria
- Common name: smooth starfishScientific name: Hacelia attenuata
- Common name: Pacific blood starScientific name: Henricia leviuscula
- Common name: Bloody Henry starfishScientific name: Henricia oculata
- Common name: slate pencil urchinScientific name: Heterocentrotus mamillatus
- Common name: arctic cushion starScientific name: Hippasteria phrygiana
- Common name: lolly fish (holothurian)Scientific name: Holothuria atra
- Common name: Tiger Tail Sea CucumberScientific name: Holothuria difficilis
- Common name: pinkfish sea cucumberScientific name: Holothuria edulis
- Common name: florida sea cucumberScientific name: Holothuria floridana
- Common name: Black sea cucumberScientific name: Holothuria forskali
- Common name: Brown spot sea cucumberScientific name: Holothuria fuscopunctata
- Common name: Tiger-Tail Sea CucumberScientific name: Holothuria hilla
- Common name: impatient sea cucumberScientific name: Holothuria impatiens
- Common name: donkey dung sea cucumberScientific name: Holothuria mexicana
- Common name: Black teatfishScientific name: Holothuria nobilis
- Common name: Leopard Sea CucumberScientific name: Holothuria pardalis
- Common name: Tiger Tail Sea CucumberScientific name: Holothuria pervicax
- Common name: sand fishScientific name: Holothuria scabra
- Common name: tiger tail sea cocumberScientific name: Holothuria thomasi
- Common name: cotton-spinnerScientific name: Holothuria tubulosa
- Common name: Black teatfishScientific name: Holothuria whitmaei
- Common name: icon starScientific name: Iconaster longimanus
- Common name: four-sided sea cucumberScientific name: Isostichopus badionotus
- Common name: Leather StarScientific name: Leiaster coriaceus
- Common name: velvety sea starScientific name: Leiaster speciosus
- Common name: Blue Linckia StarfishScientific name: Linckia guildingi
- Common name: blue sea starScientific name: Linckia laevigata
- Common name: Blue Linckia StarfishScientific name: Linckia multifora
- Common name: Heart UrchinScientific name: Lovenia elongata
- Common name: Seven-armed starfishScientific name: Luidia ciliaris
- Common name: seven armed sea starScientific name: Luidia maculata
- Common name: variegated urchinScientific name: Lytechinus variegatus
- Common name: Variable Brittle StarScientific name: Macrophiothrix variabilis
- Common name: spiny starfishScientific name: Marthasterias glacialis
- Common name: Large Burrowing Sea CucumberScientific name: Massinium magnum
- Common name: West Indian Sea EggScientific name: Meoma ventricosa
- Common name: Red Sea UrchinScientific name: Mesocentrotus franciscanus
- Common name: blue tuxedo urchinScientific name: Mespilia globulus