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Sporocyst :: Sporocyst (n.) An asexual zooid, usually forming one of a series of larval forms in the agamic reproduction of various trematodes and other parasitic worms. The sporocyst generally develops from an egg, but in its turn produces other larvae by internal budding, or by the subdivision of a part or all of its contents into a number of minute germs. See Redia..

Bagworm :: Bagworm (n.) One of several lepidopterous insects which construct, in the larval state, a baglike case which they carry about for protection. One species (Platoeceticus Gloveri) feeds on the orange tree. See Basket worm..

Brachiolaria :: Brachiolaria (n. pl.) A peculiar early larval stage of certain starfishes, having a bilateral structure, and swimming by means of bands of vibrating cilia..

Miner :: Miner (n.) Any of numerous insects which, in the larval state, excavate galleries in the parenchyma of leaves. They are mostly minute moths and dipterous flies..

Siredon :: Siredon (n.) The larval form of any salamander while it still has external gills; especially, one of those which, like the axolotl (Amblystoma Mexicanum), sometimes lay eggs while in this larval state, but which under more favorable conditions lose their gills and become normal salamanders. See also Axolotl..

Dayfly :: Dayfly (n.) A neuropterous insect of the genus Ephemera and related genera, of many species, and inhabiting fresh water in the larval state; the ephemeral fly; -- so called because it commonly lives but one day in the winged or adult state. See Ephemeral fly, under Ephemeral..

Echinococcus :: Echinococcus (n.) A parasite of man and of many domestic and wild animals, forming compound cysts or tumors (called hydatid cysts) in various organs, but especially in the liver and lungs, which often cause death. It is the larval stage of the Taenia echinococcus, a small tapeworm peculiar to the dog..

Maggot :: Maggot (n.) The footless larva of any fly. See Larval.

Gid :: Gid (a.) A disease of sheep, characterized by vertigo; the staggers. It is caused by the presence of the C/nurus, a larval tapeworm, in the brain. See C/nurus..

Polyeidic :: Polyeidic (a.) Passing through several distinct larval forms; -- having several distinct kinds of young.

Metanauplius :: Metanauplius (n.) A larval crustacean in a stage following the nauplius, and having about seven pairs of appendages..

Stage :: Stage (n.) One of several marked phases or periods in the development and growth of many animals and plants; as, the larval stage; pupa stage; zoea stage..

Larvalia :: Larvalia (n. pl.) An order of Tunicata, including Appendicularia, and allied genera; -- so called because certain larval features are retained by them through life. Called also Copelata. See Appendicularia..

Veliger :: Veliger (n.) Any larval gastropod or bivalve mollusk in the state when it is furnished with one or two ciliated membranes for swimming.

Proscolex :: Proscolex (n.) An early larval form of a trematode worm; a redia. See Redia.

Urochord :: Urochord (n.) The central axis or cord in the tail of larval ascidians and of certain adult tunicates.

Zoea :: Zoea (n.) A peculiar larval stage of certain decapod Crustacea, especially of crabs and certain Anomura..

Army Worm :: Army worm () A lepidopterous insect, which in the larval state often travels in great multitudes from field to field, destroying grass, grain, and other crops. The common army worm of the northern United States is Leucania unipuncta. The name is often applied to other related species, as the cotton worm..

Coenurus :: Coenurus (n.) The larval stage of a tapeworm (Taenia coenurus) which forms bladderlike sacs in the brain of sheep, causing the fatal disease known as water brain, vertigo, staggers or gid..

Appendicularia :: Appendicularia (n.) A genus of small free-swimming Tunicata, shaped somewhat like a tadpole, and remarkable for resemblances to the larvae of other Tunicata. It is the type of the order Copelata or Larvalia. See Illustration in Appendix..

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