invertebrate: Types of invertebrate
amoeba or (U.S.) amebaanimalcule or animalculuma microscopic animal such as an amoeba or rotifer arrowwormany small marine invertebrate of the genus Sagitta, having an elongated transparent body with fins and prehensile oral bristles: phylum Chaetognatha (chaetognaths) arthropodany invertebrate of the phylum Arthropoda, having jointed limbs, a segmented body, and an exoskeleton made of chitin. The group includes the crustaceans, insects, arachnids, and centipedes Balmain bugbardy, bardie, or bardi (Australian)bivalveany marine or freshwater mollusc of the class Pelecypoda (formerly Bivalvia or Lamellibranchia), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. The group includes clams, cockles, oysters, and mussels bladder worman encysted saclike larva of the tapeworm. The main types are cysticercus, hydatid, and coenurus blue-ringed octopus (Australian)a highly venomous octopus, Octopus maculosus, of E Australia which exhibits blue bands on its tentacles when disturbed Bluff oyster (New Zealand)box jellyfish or (Austral.) sea waspany of various highly venomous jellyfishes of the order Cubomedusae, esp Chironex fleckeri, of Australian tropical waters, having a cuboidal body with tentacles hanging from each of the lower corners brachiopod or lamp shellany marine invertebrate animal of the phylum Brachiopoda, having a ciliated feeding organ (lophophore) and a shell consisting of dorsal and ventral valves brandlinga small red earthworm, Eisenia foetida (or Helodrilus foetidus), found in manure and used as bait by anglers bryozoan or (colloquial) sea matany aquatic invertebrate animal of the phylum Bryozoa, forming colonies of polyps each having a ciliated feeding organ (lophophore) catworm, white worm, or white catan active carnivorous polychaete worm, Nephthys hombergii, that is about 10cm (4in) long, having a pearly sheen to its body: often dug for bait centipedeany carnivorous arthropod of the genera Lithobius, Scutigera, etc, having a body of between 15 and 190 segments, each bearing one pair of legs: class Chilopoda chicken lousechiton or coat-of-mail shellany small primitive marine mollusc of the genus Chiton and related genera, having an elongated body covered with eight overlapping shell plates: class Amphineura clamany of various burrowing bivalve molluscs of the genera Mya, Venus, etc. Many species, such as the quahog and soft-shell clam, are edible and Tridacna gigas is the largest known bivalve, nearly 1.5 metres long clappy-doo or clabby-doo (Scottish)a large black mussel cockleany sand-burrowing bivalve mollusc of the family Cardiidae, esp Cardium edule (edible cockle) of Europe, typically having a rounded shell with radiating ribs cone (shell)coralcrown-of-thorns (starfish)ctenophore or comb jellyany marine invertebrate of the phylum Ctenophora, including the sea gooseberry and Venus's-girdle, whose body bears eight rows of fused cilia, for locomotion cunjevoi or cunje (Australian)a sea squirt cuttlefish or cuttleany cephalopod mollusc of the genus Sepia and related genera, which occur near the bottom of inshore waters and have a broad flattened body: order Decapoda (decapods) daphniaearthwormeelwormany of various nematode worms, esp the wheatworm and the vinegar eel gaperany of various large marine bivalve molluscs of the genera Mya and Lutraria that burrow in muddy sand. M. arenaria is the American soft-shelled clam and the two species of Lutraria are the otter shells. The valves have a permanent gap at the hind end gapeworma parasitic nematode worm, Syngamus trachea, that lives in the trachea of birds and causes gapes in domestic fowl: family Syngamidae gastropodany mollusc of the class Gastropoda, typically having a flattened muscular foot for locomotion and a head that bears stalked eyes. The class includes the snails, whelks, limpets, and slugs Guinea worma parasitic nematode worm, Dracunculus medinensis, that lives beneath the skin in man and other vertebrates and is common in India and Africa horseleechany of several large carnivorous freshwater leeches of the genus Haemopis, esp H. sanguisuga jellyfish or (Austral. slang) blubberkina (New Zealand)a green sea urchin, Evichinus chloroticus, eaten in New Zealand lancelet or amphioxusleechany annelid worm of the class Hirudinea, which have a sucker at each end of the body and feed on the blood or tissues of other animals liver flukelugworm, lug, or lobwormany polychaete worm of the genus Arenicola, living in burrows on sandy shores and having tufted gills: much used as bait by fishermen lungwormany parasitic nematode worm of the family Metastrongylidae, occurring in the lungs of mammals, esp Metastrongylus apri which infects pigs millipede, millepede, or millepedany terrestrial herbivorous arthropod of the class Diplopoda, having a cylindrical body made up of many segments, each of which bears two pairs of walking legs molluscany invertebrate of the phylum Mollusca, having a soft unsegmented body and often a shell, secreted by a fold of skin (the mantle). The group includes the gastropods (snails, slugs, etc), bivalves (clams, mussels, etc), and cephalopods (cuttlefish, octopuses, etc) musselany of various marine bivalves of the genus Mytilus and related genera, esp M. edulis (edible mussel), having a dark slightly elongated shell and living attached to rocks, etc octopus or devilfishany cephalopod mollusc of the genera Octopus, Eledone, etc, having a soft oval body with eight long suckered tentacles and occurring at the sea bottom: order Octopoda (octopods) otter shelloysterany edible marine bivalve mollusc of the genus Ostrea, having a rough irregularly shaped shell and occurring on the sea bed, mostly in coastal waters paddle wormpaper nautilus, nautilus, or argonautany cephalopod mollusc of the genus Argonauta, esp A. argo, of warm and tropical seas, having a papery external spiral shell: order Octopoda (octopods) pearly nautilus, nautilus, or chambered nautilusany of several cephalopod molluscs of the genus Nautilus, esp N. pompilius, of warm and tropical seas, having a partitioned pale pearly external shell with brown stripes piddockany marine bivalve of the family Pholadidae, boring into rock, clay, or wood by means of sawlike shell valves pipi or ugari (Australian)Portuguese man-of-war or (Austral.) bluebottlequahog, hard-shell clam, hard-shell, or round claman edible clam, Venus (or Mercenaria) mercenaria, native to the Atlantic coast of North America, having a large heavy rounded shell ragworm or (U.S.) clamwormany polychaete worm of the genus Nereis, living chiefly in burrows in sand or mud and having a flattened body with a row of fleshy parapodia along each side razor-shell or (U.S.) razor clamany of various sand-burrowing bivalve molluscs of the genera Ensis and Solen, which have a long tubular shell red coral or precious coralany of several corals of the genus Corallium, the skeletons of which are pinkish-red in colour and used to make ornaments, etc roundwormany nematode worm, esp Ascaris lumbricoides, a common intestinal parasite of man and pigs sandworm or (Austral.) pumpwormscallopany of various marine bivalves of the family Pectinidae, having a fluted fan-shaped shell: includes free-swimming species (genus Pecten) and species attached to a substratum (genus Chlamys) sea anemonesea cucumbersea lilysea mousesea pensea slatersea squirtsea urchinseed oystera young oyster, esp a cultivated oyster, ready for transplantation soft-shell (clam)spongesquidany of various fast-moving pelagic cephalopod molluscs of the genera Loligo, Ommastrephes, etc, of most seas, having a torpedo-shaped body ranging from about 10 centimetres to 16.5 metres long and a pair of triangular tail fins: order Decapoda (decapods) starfishstomach wormstony coralany coral of the order Madreporaria, having a calcareous skeleton, aggregations of which form reefs and islands sunstarany starfish of the genus Solaster, having up to 13 arms radiating from a central disc tapewormtardigrade or water bearany minute aquatic segmented eight-legged invertebrate of the phylum Tardigrada, related to the arthropods, occurring in soil, ditches, etc tellinany of various slim marine bivalve molluscs of the genus Tellina (or Macoma) that live in intertidal sand, esp the smooth oval delicately tinted T. tenuis teredo or shipwormany marine bivalve mollusc of the genus Teredo trepang or bêche-de-merany of various large sea cucumbers of tropical Oriental seas, the body walls of which are used as food by the Japanese and Chinese tube wormtubifexany small reddish freshwater oligochaete worm of the genus Tubifex; it characteristically lives in a tube in sand and is used as food for aquarium fish tusk shell or tooth shellany of various burrowing seashore molluscs of the genus Dentalium and related genera that have a long narrow tubular shell open at both ends: class Scaphopoda Venus's flower basketany of several deep-sea sponges of the genus Euplectella, esp E. aspergillum, having a skeleton composed of interwoven glassy six-rayed spicules Venus's-girdlea ctenophore, Cestum veneris, of warm seas, having an elongated ribbon-like body Venus shella marine bivalve mollusc of the family Veneridae, typified by the intertidal Venus gallina, with somewhat rounded ribbed valves vinegar eel, vinegar worm, or eelworma nematode worm, Anguillula aceti, that feeds on the organisms that cause fermentation in vinegar and other liquids water louse or water slaterwater measurerwater stick insectwheatworma parasitic nematode worm, Anguina tritici, that forms galls in the seeds of wheat whipwormwoodborerany of various other unrelated invertebrates that bore into wood wormany of various invertebrates, esp the annelids (earthworms, etc), nematodes (roundworms), and flatworms, having a slender elongated body ▷ See invertebrate
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Word List of invertebrate: Types of invertebrate from the Collins English Word Lists