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Echinodermata

Echinoderms are a group of deuterostomes with more than 6,000 existing species and a high evolutionary status among invertebrates. Most sea cucumbers are benthic, and a few sea cucumbers live a pelagic life; free-living species can move slowly. They are widely distributed from shallow seas to deep seas thousands of meters deep. Starfish, sea urchins, sea cucumbers, brittle stars, etc. that are common along the coast are all echinoderms.

Linckia laevigata (Blue Sea Star)

Linckia laevigata (Blue Sea Star)

Linckia laevigata

Linckia laevigata—the blue sea star—is an ophidiasterid asteroid conspicuo···

Crown‑of‑thorns Starfish

Crown‑of‑thorns Starfish

Acanthaster planci

Acanthaster planci—the crown‑of‑thorns starfish (COTS)—is a major coral ···

Echinoidea (Sea Urchins · Overview)

Echinoidea (Sea Urchins · Overview)

Echinoidea

Echinoidea—the class of sea urchins, sand dollars and heart urchins—belong···

Choriaster granulatus (Granulated Sea Star)

Choriaster granulatus (Granulated Sea Star)

Choriaster granulatus

Choriaster granulatus—the doughboy / granulated sea star—belongs to family···

Scyphozoa (True Jellyfish · Overview)

Scyphozoa (True Jellyfish · Overview)

Scyphozoa

Scyphozoa—the true jellyfish—are cnidarians whose life cycles are dominate···

Crinoids (Overview)

Crinoids (Overview)

Crinoidea (crinoids)

Crinoids (class Crinoidea) comprise stalked sea lilies and unstalked feather···

Sea Anemones

Sea Anemones

Actiniaria

Actiniaria (sea anemones) are anthozoan cnidarians that are typically solita···

Lobed Flowerpot Coral

Lobed Flowerpot Coral

Goniopora lobata

Goniopora lobata is a classic “flowerpot coral” in family Poritidae (order···

Open Brain Coral

Open Brain Coral

Trachyphyllia geoffroyi

Trachyphyllia geoffroyi, the open brain coral, is a classic large‑polyp sto···

Carnation Soft Coral

Carnation Soft Coral

Dendronephthya sp.

Dendronephthya sp. (carnation/tree soft corals) are azooxanthellate octocora···

Yellow Sea Fan

Yellow Sea Fan

Subergorgia suberosa

Subergorgia suberosa, commonly called the yellow sea fan, is a gorgonian‑ty···

Bubble Coral

Bubble Coral

Plerogyra sinuosa

Plerogyra sinuosa, commonly called the bubble coral, is a photosymbiotic ree···

Elegant Honeycomb Coral

Elegant Honeycomb Coral

Favia speciosa (= Dipsastraea speciosa)

Favia speciosa (also cited as Dipsastraea speciosa) is a photosymbiotic, ree···

Elegant Leather Coral

Elegant Leather Coral

Sarcophyton elegans

Sarcophyton elegans is an Indo‑Pacific leather (toadstool) soft coral in fa···

Tube-dwelling Anemone

Tube-dwelling Anemone

Cerianthus membranaceus

Cerianthus membranaceus is a classic tube‑dwelling anemone (phylum Cnidaria···

Zhenghaixing

Zhenghaixing

Tumor starfish

Tumor starfish generally refers to starfish with a gentle temperament. Mainl···

Tumor starfish

Tumor starfish

Zhenghaixing

Tumor starfish have extraordinary regenerative abilities. If a predator atta···