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The triangular space under the beak of many brachiopod shells.

One of the muscles which open the shell of brachiopods; a cardinal muscle. See Illust. of Brachiopoda.

Having the cranium, or skull, long to its breadth; long-headed; -- opposed to brachycephalic. -- Dol`i*cho*ceph"al, a. & n.

An order of Brachiopoda; the Lyopomata. See Brachiopoda.

many fossil forms, having jointed arms around the margin of the oral disk; -- also called Brachiata and Articulata. See Illusts. under Comatula and Crinoidea.

The peduncle or stem by which various marine animals are attached, as certain brachiopods and goose barnacles.

That part of the arm or fore limb between the elbow and wrist; the antibrachium.

Of or pertaining to the humerus, or upper part of the arm; brachial. Humeral veil (R. C. Ch.), a long, narrow veil or scarf of the same material as the vestments, worn round the shoulders by the officiating priest or his attendant at Mass, and used to protect the sacred vessels from contact with the hands.…

The bone of the brachium, or upper part of the arm or fore limb.

Without a hinge; -- said of an order (Inarticulata or Ecardines) of brachiopods.

ss, or tin, for softening or obstructing the light of a lamp. -- Lamp shell (Zoöl.), any brachiopod shell of the genus Terebratula and allied genera. The name refers to the shape, which is like that of an antique lamp. See Terebratula. -- Safety lamp, a miner's lamp in which the flame is surrounded by fine wire gauze…

Any one of numerous species of brachiopod shells belonging to the genus Lingula, and related genera. See Brachiopoda, and Illustration in Appendix. Lingula flags (Geol.), a group of strata in the lower Silurian or Cambrian system of Wales, in which some of the layers contain vast numbers of a species of Lingula.…

lives on land. -- Lubber grasshopper (Zoöl.), a large, stout, clumsy grasshopper; esp., Brachystola magna, from the Rocky Mountain plains, and Romalea microptera, which is injurious to orange trees in Florida. -- Lubber's hole (Naut.), a hole in the floor of the "top," next the mast, through which sailors may go alo…

An order of brachiopods, in which the valves of shell are not articulated by a hinge. It includes the Lingula, Discina, and allied forms. [Written also Lyopoma.]

An extensive group of Invertebrata, including the Mollusca, Brachiopoda, and Bryozoa. Called also Malacozoaria.

r with a part of Guatemala and a part of Salvador. The Mayan peoples are dark, short, and brachycephallic, and at the time of the discovery had attained a higher grade of culture than any other American people. They cultivated a variety of crops, were expert in the manufacture and dyeing of cotton fabrics, used cacao a…

Having the ratio of the length to the breadth of the cranium a medium one; neither brachycephalic nor dolichocephalic.

A division of Invertebrata which includes the classes Brachiopoda and Bryozoa; -- called also Anthoid Mollusca.

One of several species of sea birds of the genera Synthliboramphus and Brachyramphus, inhabiting the North Pacific. They are closely related to the murres.

A brachiopod shell of the genus Orthis, and allied genera, of the family Orthidæ.