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An extensive suborder of marine Bryozoa, mostly with calcareous shells. They have a movable lip and a lid to close the aperture of the cells. [Also written Chillostomata.]

An order of Crustacea including the barnacles. When adult, they have a calcareous shell composed of several pieces. From the opening of the shell the animal throws out a group of curved legs, looking like a delicate curl, whence the name of the group. See Anatifa.

One of a kind of minute, calcareous bodies, probably vegetable, often abundant in deep-sea mud.

ounded mass or nodule produced by an aggregation of the material around a center; as, the calcareous concretions common in beds of clay.

osed or rounded fragments of stone cemented together by another mineral substance, either calcareous, siliceous, or argillaceous; pudding stone; -- opposed to agglomerate. See Breccia. A conglomerate, therefore, is simply gravel bound together by a cement. Lyell.

A submarine, semicalcareous or calcareous plant, consisting of many jointed branches.

The coral or skeleton of a zoöphyte, whether calcareous of horny, simple or compound. See Coral.

(Zoöl.), an Asiatic plover (Dromas ardeola). -- Crab's eyes, or Crab's stones, masses of calcareous matter found, at certain seasons of the year, on either side of the stomach of the European crawfishes, and formerly used in medicine for absorbent and antacid purposes; the gastroliths. -- Crab spider (Zoöl.), one of…

The removal of calcareous matter.

To deprive of calcareous matter; thus, to decalcify bones is to remove the stony part, and leave only the gelatin.

A calcareous plate which divides the cavity of certain shells into two parts.

One of the transverse, calcareous partitions between the radiating septa of a coral.

The class Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid. [Written also Echinidea, and Echinoida.]

A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or æstivation.

A small, lenticular, calcareous body, esp. an operculum of a small shell of the family Tubinid, used to remove a foreign sub stance from the eye. It is rut into the inner corner of the eye under the lid, and allowed to work its way out at the outer corner, bringing with the substance.

An extensive order of rhizopods which generally have a chambered calcareous shell formed by several united zooids. Many of them have perforated walls, whence the name. Some species are covered with sand. See Rhizophoda.

The substance which has entered the pores or cavities of a body. Addison. Calcareous infiltrations filling the cavities. Kirwan. Fatty infiltration. (Med.) See under Fatty. -- Infiltration gallery, a filter gallery.

obster; -- so called from a fancied resemblance to a seated female figure. It consists of calcareous plates. Ladies' man, a man who affects the society of ladies. -- Lady altar, an altar in a lady chapel. Shipley. -- Lady chapel, a chapel dedicated to the Virgin Mary. -- Lady court, the court of a lady of the manor.…

A sac containing small, calcareous concretions (otoliths). They are found in many Medusæ, and other invertebrates, and are supposed to be auditory organs.

tlike organism, as the gorgonians, corals, and corallines, esp. those gorgonians having a calcareous axis. All the lithophytes except the corallines are animals.