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; -- called also pineal body, epiphysis, conarium. In some animals it is connected with a rudimentary eye, the so-called pineal eye, and in other animals it is supposed to be the remnant of a dorsal median eye.

A feather not fully developed; esp., a rudimentary feather just emerging through the skin.

The seed-bearing organ of a flower. It consists of an ovary, containing the ovules or rudimentary seeds, and a stigma, which is commonly raised on an elongated portion called a style. When composed of one carpel a pistil is simple; when composed of several, it is compound. See Illust. of Flower, and Ovary.…

A nocturnal mammal (Perodictius potto) of the Lemur family, found in West Africa. It has rudimentary forefingers. Called also aposoro, and bush dog.

A rudimentary branchia, or gill. -- Pseu`do*bran"chi*al, a.

One of the rudimentary front wings of certain insects (Stylops). They resemble the halteres, or rudimentary hind wings, of Diptera.

Any species of serpentiform lizards of the family Pygopodidæ, which have rudimentary hind legs near the anal cleft, but lack fore legs.

The rudimentary stem of a plant which supports the cotyledons in the seed, and from which the root is developed downward; the stem of the embryo; the caulicle.

An order of birds in which the wings are small, rudimentary, or absent, and the breastbone is destitute of a keel. The ostrich, emu, and apteryx are examples.

ool for the instruction of the private soldiers of a regiment, and their children, in the rudimentary branches of education.

A rude model; the rudimentary, unfinished form of a thing.

Rudimentary. Addison.

A small appendage like a rudimentary leaf, resembling the scales of a fish in form, and often in arrangement; as, the scale of a bud, of a pine cone, and the like. The name is also given to the chaff on the stems of ferns.

An order of fresh-water fishes inhabiting tropical Africa. They have rudimentary electrical organs on each side of the tail.

the Northwestern United States. It somewhat resembles a muskrat or marmot, but has only a rudimentary tail. Its head is broad, its eyes are small and its fur is brownish above, gray beneath. It constitutes the family Haplodontidæ. Called also boomer, showt'l, and mountain beaver.

r. (Bot.) Same as Turtlehead. -- Shell gland. (Zoöl.) (a) A glandular organ in which the rudimentary shell is formed in embryonic mollusks. (b) A glandular organ which secretes the eggshells of various worms, crustacea, mollusks, etc. -- Shell gun, a cannon suitable for throwing shells. -- Shell ibis (Zoöl.), the op…

. Both jaws are furnished with teeth (see Illust. of Edentata), and the ears and tail are rudimentary. They inhabit South and Central America and Mexico.

l.), any one of several species of neuropterous insects of the genus Boreus. The male has rudimentary wings; the female is wingless. These insects sometimes appear creeping and leaping on the snow in great numbers. -- Snow gnat (Zoöl.), any wingless dipterous insect of the genus Chionea found running on snow in winter…

ing each other and allowing the limbs to move freely. -- Splint bone (Anat.), one of the rudimentary, splintlike metacarpal or metatarsal bones on either side of the cannon bone in the limbs of the horse and allied animals. -- Splint coal. See Splent coal, under Splent.

ton. Spurious primary, or Spurious quill (Zoöl.), the first, or outer, primary quill when rudimentary or much reduced in size, as in certain singing birds. -- Spurious wing (Zoöl.), the bastard wing, or alula.