Echinodermata [phylum]
Eleutherozoa [no rank]
Asterozoa [superclass]
Asteroidea [class] (starfishes) Ophiuroidea [class] (brittle stars)
Echinozoa [superclass]
Echinoidea [class] (sea urchins)
Euechinoidea [subclass]
Atelostomata [superorder]
Cassiduloida [order]
Cassidulidae [family]
Cassidulus [genus]
Cassidulus mitis
Echinolampadidae [family]
Echinolampas [genus]
Echinolampas crassa
Spatangoida [order]
Brissidae [family]
Brissopsis [genus]
Brissopsis elongata Brissopsis lyrifera
Brissus [genus]
Brissus agassizii Brissus unicolor
Meoma [genus]
Meoma ventricosa
Plagiobrissus [genus]
Plagiobrissus grandis
Loveniidae [family]
Echinocardium [genus]
Echinocardium cordatum (sea potato)
Schizasteridae [family]
Agassizea [genus]
Agassizea scrobiculata
Moira [genus]
Moira clotho
Paraster [genus]
Paraster doederleini
Diadematacea [superorder]
Diadematoida [order]
Diadematidae [family]
Astropyga [genus]
Astropyga magnifica Astropyga pulvinata Astropyga radiata
Centrostephanus [genus]
Centrostephanus coronatus
Diadema [genus]
Diadema antillarum
Diadema antillarum scensionis
Diadema environmental samples
Diadema sp. DJN9 Diadema sp. DSM1 Diadema sp. DSM2 Diadema sp. DSM3 Diadema sp. DSM4 Diadema sp. dsm5 Diadema sp. DSM6 Diadema sp. DSM7 Diadema sp. DSM8 Diadema sp. seto10 Diadema sp. SETO15 Diadema sp. seto16 Diadema sp. seto17 Diadema sp. seto18 Diadema sp. seto19 Diadema sp. seto35 Diadema sp. seto38 Diadema sp. seto9
Diadema mexicanum Diadema palmeri Diadema paucispinum Diadema savignyi Diadema setosum
Echinothurioida [order]
Echinothuriidae [family]
Araeosoma [genus]
Araeosoma ijimai (イイジマフクロウニ？) Araeosoma leptaleum
Asthenosoma [genus]
Asthenosoma owstoni (イイジマフクロウニ？)
Phymosomatoida [order]
Phymosomatidae [family]
Glyptocidaris [genus]
Glyptocidaris crenularis
Stomechinidae [family]
Stomopneustes [genus]
Stomopneustes variolaris Stomopneustes variolus
Echinacea [superorder]
Arbacoida [order]
Arbaciidae [family]
Arbacia
Arbacia dufresnei Arbacia incisa Arbacia lixula (black urchin) Arbacia punctulata (punctuate urchin) Arbacia stellata Arbacia sp.
Tetrapygus
Tetrapygus niger
Echinoida [order]
Echinidae [family]
Colobocentrotus [genus]
Colobocentrotus atratus
Echinus [genus]
Echinus esculentus
Paracentrotus [genus]
Paracentrotus lividus (common urchin)
Parechinus [genus]
Parechinus angulosus (angulate urchin)
Psammechinus [genus]
Psammechinus miliaris (sand urchin)
Pseudocentrotus [genus]
Pseudocentrotus depressus (アカウニ)
Sterechinus [genus]
Sterechinus neumayeri
Echinometridae [family]
Anthocidaris [genus]
Anthocidaris crassispina (ムラサキウニ) Anthocidaris sp.
Coenocentrotus [genus]
Caenocentrotus gibbosus
Echinometra [genus]
Echinometra insularis Echinometra lacunter Echinometra lucunter Echinometra mathaei (ナガウニ) Echinometra oblonga Echinometra vanbrunti Echinometra viridis Echinometra sp. Echinometra sp. A Echinometra sp. C
Evechinus [genus]
Evechinus chloroticus
Heliocidaris [genus]
Heliocidaris erythrogramma Heliocidaris tuberculata
Heterocentrotus [genus]
Heterocentrotus mammillatus
Genocidaridae [family]
Genocidaris [genus]
Genocidaris maculata
Strongylocentrotidae [family]
Allocentrotus [genus]
Allocentrotus fragilis (fragile urchin)
Hemicentrotus [genus]
Hemicentrotus pulcherrimus (バフンウニ) Hemicentrotus sp.
Strongylocentrotus [genus]
Strongylocentrotus droebachiensis Strongylocentrotus franciscanus Strongylocentrotus intermedius (エゾバフンウニ) Strongylocentrotus nudus (キタムラサキウニ) Strongylocentrotus pallidus Strongylocentrotus polyacanthus Strongylocentrotus purpuratus (purple sea urchin, アメリカムラサキウニ)
Temnopleuroida [order]
Temnopleuridae [family]
Amblypneustes [genus]
Amblypneustes formosus Amblypneustes grandis Amblypneustes leucoglobus Amblypneustes ovum Amblypneustes pachistus Amblypneustes pallidus
Holopneustes [genus]
Holopneustes inflatus Holopneustes porosissimus Holopneustes purpurescens
Mespilia [genus]
Mespilia globulus (コシダカウニ)
Microcyphus [genus]
Microcyphus annulatus Microcyphus olivaceus
Pseudechinus [genus]
Pseudechinus albocinctus Pseudechinus hutton Pseudechinus novaezealandiae
Salmaciella [genus]
Salmaciella oligopora
Salmacis [genus]
Salmacis belli Salmacis sphaeroides
Temnopleurus [genus]
Temnopleurus alexandri Temnopleurus hardwickii Temnopleurus michaelseni Temnopleurus reevesii Temnopleurus toreumaticus (サンショウウニ)
Temnotrema [genus]
Temnotrema sculptum
Toxopneustidae [family]
Lytechinus [genus]
Lytechinus anamesus Lytechinus pictus (painted urchin) Lytechinus variegatus (green urchin) Lytechinus sp.
Pseudoboletia [genus]
Pseudoboletia maculata
Sphaerechinus [genus]
Sphaerechinus granularis (purple sea urchin)
Toxopneustes [genus]
Toxopneustes pileolus (ラッパウニ)
Tripneustes [genus]
Tripneustes depressus Tripneustes gratilla (Hawaiian sea urchin) Tripneustes ventricosus Tripneustes sp. Brazil-HHAL-2003 Tripneustes sp. Seychelles-HHAL-2003 Tripneustes sp. Tripneustes sp. South Africa-HHAL-2003
Gnathostomata [superorder]
Clypeasteroida [order] (sand dollars)
Arachnoididae [family]
Fellaster [genus]
Fellaster zelandiae
Astriclypeidae [family]
Astriclypeus [genus]
Astriclypeus manni (スカシカシパン)
Echinodiscus [genus]
Echinodiscus bisperforatus
Clypeasteridae [family]
Clypeaster [genus]
Clypeaster japonicus (タコノマクラ) Clypeaster rosaceus Clypeaster subdepressus
Mellitidae [family]
Encope [genus]
Encope aberrans Encope stokesii
Pedinoida [order]
Pedinidae [no rank]
Caenopedina [genus]
Caenopedina diomedeae
Perischoechinoidea [subclass] (pencil urchins)
Cidaroida [order] (pencil urchins)
Cidaridae [family]
Cidaris [genus]
Cidaris cidaris
Eucidaris [genus]
Eucidaris clavata Eucidaris galapagensis Eucidaris metularia Eucidaris thouarsi Eucidaris tribuloides
Hesperocidaris
Hesperocidaris dubia Hesperocidaris panamensis
Phyllacanthus
Phyllacanthus imperialis
Prionocidaris
Prionocidaris bispinosa
unclassified Echinoidea
Echinotrix
Echinotrix calamaris Echinotrix diadema
Spatangus
Spatangus purpureus
unidentified sea urchin
Holothuroidea [class] (sea cucumbers)
Pelmatozoa [no rank]
Crinoidea [class]
Articulata [subclass]