Acanthasteridae

Crown of thorns starfish — Acanthaster mauritiensis

Aglaopheniidae

Elongated aglaophenia — Aglaophenia elongata

Asteriidae

Common starfish — Asterias rubens

Purple sea star — Pisaster ochraceus

Sunflower seastar — Pycnopodia helianthoides

Asterinidae

Bat star — Patiria miniata

Asteropseidae

Leather star — Dermasterias imbricata

Axinellidae

Yellow antlers sponge — Axinella polypoides

Chalinidae

Purple encrusting sponge — Haliclona cinerea

Cidaridae

Long-spined slate pen sea-urchin — Cidaris cidaris

Ten-lined urchin — Eucidaris metularia

Slate pencil urchin — Eucidaris tribuloides

Comatulidae

Bennett’s feather star — Anneissia bennetti

Cucumariidae

Sea apple — Pseudocolochirus violaceus

Diadematidae

Star urchin — Astropyga radiata

Diadem urchin — Diadema setosum

Double-spined urchin — Echinothrix calamaris

Echinasteridae

Warty starfish — Echinaster callosus

Red starfish — Echinaster sepositus

Echinidae

European edible sea urchin — Echinus esculentus

Echinometridae

Rock-boring urchin — Echinometra mathaei

Geodiidae

Elephant’s hide sponge — Pachymatisma johnstonia

Goniasteridae

Children’s sea star — Calliaster childreni

Gorgonocephalidae

Northern basket-star — Gorgonocephalus arcticus

Holothuriidae

Black sea-cucumber — Holothuria forskali

Microcionidae

Orange ear sponge — Clathria rugosa

Ophidiasteridae

Mottled sea star — Nardoa tuberculata

Oreasteridae

Cake sea star — Anthenea aspera

Granulated cushion star — Choriaster granulatus

Arabian cushion star — Culcita coriacea

Common knobbed star — Pentaceraster mammillatus

Westermann’s knobbed star — Pentaceraster westermanni

Chocolate chip sea star — Protoreaster nodosus

Petrosiidae

Barrel sponge — Xestospongia testudinaria

Solasteridae

Common sunstar — Crossaster papposus

Stichopodidae

Curryfish — Stichopus herrmanni

Synaptidae

Conspicuous sea cucumber — Opheodesoma spectabilis

Temnopleuridae

Two-tone salmacis urchin — Salmacis bicolor