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Invertebrates

Invertebrates refer to lower animal groups that do not have backbones. They are the primitive forms of animals. Its species account for 95% of the total number of animal species. Distributed all over the world, there are about 1 million species in existence. Including protozoa, echinoderms, mollusks, platyhelminthes, annelids, coelenterates, arthropods, linear animals, etc.

Nautiloidea (Subclass · Overview)

Nautiloidea (Subclass · Overview)

Nautiloidea

Nautiloidea is an ancient subclass of cephalopods. Today only a handful of l···

Percebes (Goose Barnacle · Overview)

Percebes (Goose Barnacle · Overview)

Pollicipes pollicipes (commonly meant)

Percebes commonly refers to the goose barnacle, and in European gastronomy m···

Vir philippinensis (Philippine Anemone Shrimp)

Vir philippinensis (Philippine Anemone Shrimp)

Vir philippinensis

Vir philippinensis—often called the Philippine anemone shrimp—is a commens···

Choriaster granulatus (Granulated Sea Star)

Choriaster granulatus (Granulated Sea Star)

Choriaster granulatus

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

Jorunna funebris (Dotted Nudibranch)

Jorunna funebris (Dotted Nudibranch)

Jorunna funebris

Jorunna funebris, often called the dotted (Dalmatian) nudibranch, is a dorid···

Scyphozoa (True Jellyfish · Overview)

Scyphozoa (True Jellyfish · Overview)

Scyphozoa

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

Giant Australian Cuttlefish

Giant Australian Cuttlefish

Sepia apama

Sepia apama, the Giant Australian Cuttlefish, is among the largest cuttlefis···

Octopodidae (Overview)

Octopodidae (Overview)

Octopodidae

Octopodidae is the principal family of true octopuses (Cephalopoda: Octopoda···

Christmas Tree Worm

Christmas Tree Worm

Spirobranchus giganteus

Spirobranchus giganteus—the Christmas tree worm—is a tube‑dwelling serpul···

Southern Blue‑Ringed Octopus (Highly Venomous)

Southern Blue‑Ringed Octopus (Highly Venomous)

Hapalochlaena maculosa

Hapalochlaena maculosa—the southern blue‑ringed octopus—is a small, highl···

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···

Spanish Dancer Nudibranch

Spanish Dancer Nudibranch

Hexabranchus sanguineus

Hexabranchus sanguineus, the iconic Spanish dancer, is one of the largest an···

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···