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A soft tactile appendage of the mantle of many Mollusca, and of the parapodia of Annelida. Those near the head of annelids are Tentacular cirri; those of the last segment are caudal cirri.

A genus of naked pteropods. One species (Clione papilonacea), abundant in the Arctic Ocean, constitutes a part of the food of the Greenland whale. It is sometimes incorrectly called Clio.

an evergreen mosslike plant, much used in winter decoration. The best know species is Lycopodium clavatum, but other Lycopodia are often called by this name. The spores form a highly inflammable powder. -- Club root (Bot.), a disease of cabbages, by which the roots become distorted and the heads spoiled. -- Club tops…

(Bot.) A leguminous herb (Onobrychis Caput-galli), having small spiny-crested pods.

A husk; a pod; as, a peascod. [Eng.] Mortimer.

The division of Thysanura which includes Podura, and allied forms.

compound pistil may be attached, as in the case of the geranium; or which is left when a pod opens.

A leguminous climbing plant of the genus Mucuna, having crooked pods covered with sharp hairs, which stick to the fingers, causing intolerable itching. The spiculæ are sometimes used in medicine as a mechanical vermifuge. [Written also couhage, cowage, and cowitch.]

A genus of living Brachiopoda; -- so called from its fancied resemblance to the cranium or skull.

The coloring matter of Chinese yellow pods, the fruit of Gardenia grandiflora. Watts.

One of the classes of the arthropods, including lobsters and crabs; -- so called from the crustlike shell with which they are covered.

A lever mounted on a tripod for lifting stones, leveling up railroad ties, etc. Knight.

A cephalopod of the genus Sepia, having an internal shell, large eyes, and ten arms furnished with denticulated suckers, by means of which it secures its prey. The name is sometimes applied to dibranchiate cephalopods generally.

A genus of minute Entomostraca, found both in fresh and salt water. See Copepoda.

A small water bird (Podilymbus podiceps), allied to the grebes, remarkable for its quickness in diving; -- called also dapchick, dobchick, dipchick, didapper, dobber, devil-diver, hell-diver, and pied-billed grebe.

The division of Cephalopoda which includes the squids, cuttlefishes, and others having ten arms or tentacles; -- called also Decapoda. [Written also Decacera.] See Dibranchiata.

Having ten feet; decapodal. [R.] Bailey.

open along a definite line of attachment or suture, without tearing, as in the opening of pods, or the bursting of capsules at maturity so as to emit seeds, etc.; also, the bursting open of follicles, as in the ovaries of animals, for the expulsion of their contents.

A name formerly given to certain Silurian brachiopod shells of the genus Spirifer. Delthyris limestone (Geol.), one of the divisions of the Upper Silurian rocks in New York.

The triangular space under the beak of many brachiopod shells.