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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..

Strepsipterous :: Strepsiptera (n. pl.) A group of small insects having the anterior wings rudimentary, and in the form of short and slender twisted appendages, while the posterior ones are large and membranous. They are parasitic in the larval state on bees, wasps, and the like; -- called also Rhipiptera. See Illust. under Rhipipter..

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

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..

Necrophagan :: Necrophagan (n.) Any species of a tribe (Necrophaga) of beetles which, in the larval state, feed on carrion; a burying beetle..

Forester :: Forester (n.) A lepidopterous insect belonging to Alypia and allied genera; as, the eight-spotted forester (A. octomaculata), which in the larval state is injurious to the grapevine..

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..

Paedogenesis :: Paedogenesis (n.) Reproduction by young or larval animals.

Caterpillar :: Caterpillar (n.) The larval state of a butterfly or any lepidopterous insect; sometimes, but less commonly, the larval state of other insects, as the sawflies, which are also called false caterpillars. The true caterpillars have three pairs of true legs, and several pairs of abdominal fleshy legs (prolegs) armed with hooks. Some are hairy, others naked. They usually feed on leaves, fruit, and succulent vegetables, being often very destructive, Many of them are popularly called worms, as the cutw

Encystment :: Encystment (n.) A process by which many internal parasites, esp. in their larval states, become inclosed within a cyst in the muscles, liver, etc. See Trichina..

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

Stylus :: Stylops (n.) A genus of minute insects parasitic, in their larval state, on bees and wasps. It is the typical genus of the group Strepsiptera, formerly considered a distinct order, but now generally referred to the Coleoptera. See Strepsiptera..

Trichina :: Trichina (n.) A small, slender nematoid worm (Trichina spiralis) which, in the larval state, is parasitic, often in immense numbers, in the voluntary muscles of man, the hog, and many other animals. When insufficiently cooked meat containing the larvae is swallowed by man, they are liberated and rapidly become adult, pair, and the ovoviviparous females produce in a short time large numbers of young which find their way into the muscles, either directly, or indirectly by means of the blood. Their

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

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..

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..

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

Pupiparous :: Pupiparous (a.) Bearing, or containing, a pupa; -- said of the matured larvae, or larval skins, of certain Diptera..

Acephalocyst :: Acephalocyst (n.) A larval entozoon in the form of a subglobular or oval vesicle, or hydatid, filled with fluid, sometimes found in the tissues of man and the lower animals; -- so called from the absence of a head or visible organs on the vesicle. These cysts are the immature stages of certain tapeworms. Also applied to similar cysts of different origin..

Gastraea :: Gastraea (n.) A primeval larval form; a double-walled sac from which, according to the hypothesis of Haeckel, man and all other animals, that in the first stages of their individual evolution pass through a two-layered structural stage, or gastrula form, must have descended. This idea constitutes the Gastraea theory of Haeckel. See Gastrula..

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