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A larva (plural: larvae) is a distinct juvenile form many animals undergo before metamorphosis into adults. [1]

123 relations: Acanthocephala, Adult, Amphibian, Animal, Annelid, Antonio Berlese, Apicomplexan life cycle, Apodous, Arthropod, Avicularium, Barnacle, Bee, Beetle, Biological life cycle, Bipinnaria, Bivalvia, Brachiopod, Brachycera, Bryozoa, Buprestidae, Butterfly, Caterpillar, Cephalopod, Cestoda, Cnidaria, Codiolum, Crane fly, Crustacean, Crustacean larva, Ctenophora, Cyclorrhapha, Cyphonautes, Cysticercoid, Cysticercosis, Dauer larva, Decapoda, Deuterostome, Developmental biology, Dicyemida, Dipleurula, Ecdysis, Echinococcosis, Echinoderm, Eel, Endopterygota, Entomology, Eucestoda, Fish, Flatworm, Fly, ..., Frog, Gemmule, Glochidium, Hemichordate, Hemimetabolism, Hymenoptera, Ichthyoplankton, Imago, Insect, Instar, Jellyfish, Juvenile (organism), Lamprey, Lepidoptera, Leptocephalus, Longhorn beetle, Loricifera, Maggot, Mammal, Marine larval ecology, Marsupial, Mayfly, Müller's larva, Metamorphosis, Microfilaria, Mollusca, Monogenea, Monotreme, Mosquito, Nematocera, Nematode, Nematomorpha, Nemertea, Neoteny, Newt, Nymph (biology), Oncosphere, Paralarva, Parenchymella, Phoronid, Planula, Plerocercoid, Polyp, Priapulida, Prognathism, Puberty, Pupa, Recapitulation theory, Red algae, Rhizocephala, Ropalidia marginata, Sacculina, Scarabaeoidea, Sclerotin, Sea spider, Sipuncula, Spawn (biology), Sponge, Strobilation, Symbion, Tadpole, Tornaria, Treatise on Invertebrate Paleontology, Trematoda, Trematode life cycle stages, Trilobite, Trochophore, Tunicate, Turbellaria, Veliger, Wasp, Xiphosura, Yolk. Expand index (73 more) »


Acanthocephala (Greek ἄκανθος, akanthos, thorn + κεφαλή, kephale, head) is a phylum of parasitic worms known as acanthocephalans, thorny-headed worms, or spiny-headed worms, characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host.

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Biologically, an adult is a human or other organism that has reached sexual maturity.

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Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia.

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Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia.

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The annelids (Annelida, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.

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Antonio Berlese

Antonio Berlese (26 June 1863 in Padua – 24 October 1927 in Florence) was an Italian entomologist.

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Apicomplexan life cycle

Apicomplexans, a group of intracellular parasites, have life cycle stages evolved to allow them to survive the wide variety of environments they are exposed to during their complex life cycle.

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No description.

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An arthropod (from Greek ἄρθρον arthron, "joint" and πούς pous, "foot") is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and paired jointed appendages.

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The avicularium (pl. avicularia) in cheilostome bryozoans is a modified, non-feeding zooid.

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A barnacle is a type of arthropod constituting the infraclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters.

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Bees are flying insects closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the European honey bee, for producing honey and beeswax.

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Beetles are a group of insects that form the order Coleoptera, in the superorder Endopterygota.

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Biological life cycle

In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of changes in form that an organism undergoes, returning to the starting state.

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A bipinnaria is the first stage in the larval development of most starfish, and is usually followed by a brachiolaria stage.

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Bivalvia, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts.

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Brachiopods, phylum Brachiopoda, are a group of lophotrochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs.

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The Brachycera are a suborder of the order Diptera.

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Bryozoa (also known as the Polyzoa, Ectoprocta or commonly as moss animals) are a phylum of aquatic invertebrate animals.

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Buprestidae is a family of beetles known as jewel beetles or metallic wood-boring beetles because of their glossy iridescent colors.

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Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths.

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Caterpillars are the larval stage of members of the order Lepidoptera (the insect order comprising butterflies and moths).

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A cephalopod is any member of the molluscan class Cephalopoda (Greek plural κεφαλόποδα, kephalópoda; "head-feet") such as a squid, octopus or nautilus.

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Cestoda is a class of parasitic worms in the flatworm (Platyhelminthes) phylum, commonly known as tapeworms.

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Cnidaria is a phylum containing over 10,000 species of animals found exclusively in aquatic (freshwater and marine) environments: they are predominantly marine species.

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Codiolum is a genus of green algae, in the family Ulotrichaceae.

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Crane fly

Crane fly is a common name referring to any member of the insect family Tipulidae, of the order Diptera, true flies in the superfamily Tipuloidea.

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Crustaceans (Crustacea) form a large, diverse arthropod taxon which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill, woodlice, and barnacles.

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Crustacean larva

Crustaceans may pass through a number of larval and immature stages between hatching from their eggs and reaching their adult form.

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Ctenophora (singular ctenophore, or; from the Greek κτείς kteis 'comb' and φέρω pherō 'to carry'; commonly known as comb jellies) is a phylum of invertebrate animals that live in marine waters worldwide.

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Cyclorrhapha is an unranked taxon within the infraorder Muscomorpha.

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A cyphonautes is a larva of an ectoproct or bryozoan.

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A cysticercoid is the larval stage of certain tapeworms, similar in appearance to a cysticercus, but having the scolex filling completely the enclosing cyst.

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Cysticercosis is a tissue infection caused by the young form of the pork tapeworm.

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Dauer larva

Dauer (German "die dauer", "the enduring", from A.G. Fuchs (1937) Neue parasitische und halbparasitischa Nematoden bei Borkenkäfern und einige andere Nematoden) describes an alternative developmental stage of nematode worms, particularly rhabditids including Caenorhabditis elegans, whereby the larva goes into a type of stasis and can survive harsh conditions.

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The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crayfish, crabs, lobsters, prawns, and shrimp.

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Deuterostomes (taxonomic term: Deuterostomia; meaning "second mouth" in Greek) are any members of a superphylum of animals.

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Developmental biology

Developmental biology is the study of the process by which animals and plants grow and develop.

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Dicyemida, also known as Rhombozoa, is a phylum of tiny parasites that live in the renal appendages of cephalopods.

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Dipleurula is a hypothetical larva of the Echinoderms.

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Ecdysis is the moulting of the cuticle in many invertebrates of the clade Ecdysozoa.

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Echinococcosis is a parasitic disease of tapeworms of the Echinococcus type.

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Echinoderm is the common name given to any member of the phylum Echinodermata (from Ancient Greek, ἐχῖνος, echinos – "hedgehog" and δέρμα, derma – "skin") of marine animals.

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An eel is any ray-finned fish belonging to the order Anguilliformes, which consists of four suborders, 20 families, 111 genera and about 800 species.

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Endopterygota, also known as Holometabola, is a superorder of insects within the infraclass Neoptera that go through distinctive larval, pupal, and adult stages.

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Entomology is the scientific study of insects, a branch of zoology.

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Eucestoda is the larger of the two subclasses of flatworms in the class Cestoda (the other subclass is Cestodaria).

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Fish are gill-bearing aquatic craniate animals that lack limbs with digits.

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The flatworms, flat worms, Platyhelminthes, Plathelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.

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True flies are insects of the order Diptera, the name being derived from the Greek δι- di- "two", and πτερόν pteron "wings".

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A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (Ancient Greek ἀν-, without + οὐρά, tail).

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Gemmules are internal buds found in sponges and are involved in asexual reproduction.

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The glochidium (plural glochidia) is a microscopic larval stage of some freshwater mussels, aquatic bivalve mollusks in the families Unionidae and Margaritiferidae, the river mussels and European freshwater pearl mussels.

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Hemichordata is a phylum of marine deuterostome animals, generally considered the sister group of the echinoderms.

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Hemimetabolism or hemimetaboly, also called incomplete metamorphosis and paurometabolism,McGavin, George C. Essential Entomology: An Order-by-Order Introduction.

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Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants.

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Ichthyoplankton (from Greek: ἰχθύς, ikhthus, "fish"; and πλαγκτός, planktos, "drifter") are the eggs and larvae of fish.

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In biology, the imago is the last stage an insect attains during its metamorphosis, its process of growth and development; it also is called the imaginal stage, the stage in which the insect attains maturity.

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Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.

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An instar (from the Latin "form", "likeness") is a developmental stage of arthropods, such as insects, between each moult (ecdysis), until sexual maturity is reached.

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Jellyfish or sea jelly is the informal common name given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria.

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Juvenile (organism)

A juvenile is an individual organism that has not yet reached its adult form, sexual maturity or size.

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Lampreys (sometimes also called, inaccurately, lamprey eels) are an ancient lineage of jawless fish of the order Petromyzontiformes, placed in the superclass Cyclostomata.

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Lepidoptera is an order of insects that includes butterflies and moths (both are called lepidopterans).

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Leptocephalus (meaning "slim head") is the flat and transparent larva of the eel, marine eels, and other members of the superorder Elopomorpha.

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Longhorn beetle

The longhorn beetles (Cerambycidae; also known as long-horned or longhorn beetles or longicorns) are a cosmopolitan family of beetles, typically characterized by extremely long antennae, which are often as long as or longer than the beetle's body.

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Loricifera (from Latin, lorica, corselet (armour) + ferre, to bear) is a phylum of very small to microscopic marine cycloneuralian sediment-dwelling animals with 37 described species, in nine genera.

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A maggot is the larva of a fly (order Diptera); it is applied in particular to the larvae of Brachycera flies, such as houseflies, cheese flies, and blowflies, rather than larvae of the Nematocera, such as mosquitoes and Crane flies.

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Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.

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Marine larval ecology

Marine larval ecology is the study of the factors influencing the dispersing larval stage which is exhibited by many marine invertebrates and fishes.

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Marsupials are any members of the mammalian infraclass Marsupialia.

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Mayflies (also known as Canadian soldiers in the United States, and as shadflies or fishflies in Canada and the upper Midwestern U.S.; also up-winged flies in the United Kingdom) are aquatic insects belonging to the order Ephemeroptera.

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Müller's larva

Müller's larva or Mulleria is a larva of some Polycladida.

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Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation.

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The microfilaria (plural microfilariae, sometimes abbreviated mf) is an early stage in the life cycle of certain parasitic nematodes in the family Onchocercidae.

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Mollusca is a large phylum of invertebrate animals whose members are known as molluscs or mollusksThe formerly dominant spelling mollusk is still used in the U.S. — see the reasons given in Gary Rosenberg's.

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Monogeneans are a group of ectoparasites commonly found on the skin, gills, or fins of fish.

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Monotremes are one of the three main groups of living mammals, along with placentals (Eutheria) and marsupials (Metatheria).

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Mosquitoes are small, midge-like flies that constitute the family Culicidae.

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The Nematocera (thread-horns) are a suborder of elongated flies with thin, segmented antennae and mostly aquatic larvae, consisting of the mosquitoes, crane flies, gnats, black flies, and midges.

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The nematodes or roundworms constitute the phylum Nematoda (also called Nemathelminthes).

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Nematomorpha (sometimes called Gordiacea, and commonly known as horsehair worms or Gordian worms) are a phylum of parasitoid animals superficially similar to nematode worms in morphology, hence the name.

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Nemertea is a phylum of invertebrate animals also known as "ribbon worms" or "proboscis worms".

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Neoteny, (also called juvenilization)Montagu, A. (1989).

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A newt is a salamander in the subfamily Pleurodelinae, also called eft during its terrestrial juvenile phase.

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Nymph (biology)

In biology, a nymph is the immature form of some invertebrates, particularly insects, which undergoes gradual metamorphosis (hemimetabolism) before reaching its adult stage.

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An oncosphere is the larval form of a tapeworm once it has been ingested by an intermediate host animal.

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Paralarvae (singular: paralarva) are young cephalopods in the planktonic stages between hatchling and subadult.

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Parenchymella is a type of larva of a demosponge composed of an envelope of flagellated cells surrounding an internal mass of cells.

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Phoronids (scientific name Phoronida, sometimes called horseshoe worms) are a small phylum of marine animals that filter-feed with a lophophore (a "crown" of tentacles), and build upright tubes of chitin to support and protect their soft bodies.

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A planula is the free-swimming, flattened, ciliated, bilaterally symmetric larval form of various cnidarian species.

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Plerocercoid refers to last larval form, the infective form, found in the second intermediate host of many Cestoda with aquatic life cycles.

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A polyp in zoology is one of two forms found in the phylum Cnidaria, the other being the medusa.

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Priapulida (priapulid worms, from Gr. πριάπος, priāpos 'Priapus' + Lat. -ul-, diminutive), sometimes referred to as penis worms, is a phylum of unsegmented marine worms.

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Prognathism is the positional relationship of the mandible or maxilla to the skeletal base where either of the jaws protrudes beyond a predetermined imaginary line in the coronal plane of the skull.

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Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction.

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A pupa (pūpa, "doll"; plural: pūpae) is the life stage of some insects undergoing transformation between immature and mature stages.

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Recapitulation theory

The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel's phrase "ontogeny recapitulates phylogeny"—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (ontogeny), goes through stages resembling or representing successive stages in the evolution of the animal's remote ancestors (phylogeny).

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Red algae

The red algae, or Rhodophyta, are one of the oldest groups of eukaryotic algae.

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Rhizocephala are derived barnacles that parasitise decapod crustaceans.

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Ropalidia marginata

Ropalidia marginata is an Old World species of paper wasp.

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Sacculina is a genus of barnacles that is a parasitic castrator of crabs.

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Scarabaeoidea is a superfamily of beetles, the only subgroup of the infraorder Scarabaeiformia.

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Sclerotin is a component of the cuticles of various Arthropoda, most familiarly insects.

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Sea spider

Sea spiders, also called Pantopoda or pycnogonids, ('pycno-' closely packed, 'gonid' gonidia) are marine arthropods of class Pycnogonida.

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The Sipuncula or Sipunculida (common names sipunculid worms or peanut worms) is a group containing 144–320 species (estimates vary) of bilaterally symmetrical, unsegmented marine worms.

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Spawn (biology)

Spawn is the eggs and sperm released or deposited into water by aquatic animals.

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Sponges, the members of the phylum Porifera (meaning "pore bearer"), are a basal Metazoa clade as sister of the Diploblasts.

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Strobilation or transverse fission is a form of asexual reproduction consisting of the spontaneous transverse segmentation of the body.

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Symbion is the name of a genus of aquatic animals, less than 0.5 mm wide, found living attached to the bodies of cold-water lobsters.

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A tadpole (also called a pollywog) is the larval stage in the life cycle of an amphibian, particularly that of a frog or toad.

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A tornaria is the planktonic larva of some species of Hemichordata such as the acorn worms.

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Treatise on Invertebrate Paleontology

The Treatise on Invertebrate Paleontology (or TIP) published by the Geological Society of America and the University of Kansas Press, is a definitive multi-authored work of some 50 volumes, written by more than 300 paleontologists, and covering every phylum, class, order, family, and genus of fossil and extant (still living) invertebrate animals.

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Trematoda is a class within the phylum Platyhelminthes.

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Trematode life cycle stages

Trematodes are any parasitic flatworm of the class Trematoda, especially a parasitic fluke.

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Trilobites (meaning "three lobes") are a fossil group of extinct marine arachnomorph arthropods that form the class Trilobita.

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A trochophore (also spelled trocophore) is a type of free-swimming planktonic marine larva with several bands of cilia.

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A tunicate is a marine invertebrate animal, a member of the subphylum Tunicata, which is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords.

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The Turbellaria are one of the traditional sub-divisions of the phylum Platyhelminthes (flatworms), and include all the sub-groups that are not exclusively parasitic.

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A veliger is the planktonic larva of many kinds of sea snails and freshwater snails, as well as most bivalve molluscs (clams) and tusk shells.

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A wasp is any insect of the order Hymenoptera and suborder Apocrita that is neither a bee nor an ant.

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Xiphosurans, sometimes called horseshoe crabs, are arthropods related to arachnids that first appeared in the Hirnantian (Late Ordovician) until today.

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Among animals which produce one, the yolk (also known as the vitellus) is the nutrient-bearing portion of the egg whose primary function is to supply food for the development of the embryo.

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Larva (zoology), Larvae, Larval, Larval Forms, Larval forms, Larval stage, Larvas, Larvule, Lavriform.


[1] https://en.wikipedia.org/wiki/Larva

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