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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.

To form in its first rudiments, without revision, correction, or polish. Dryden.

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 space between the tubing and the sides of the hole. -- Seed bud (Bot.), the germ or rudiment of the plant in the embryo state; the ovule. -- Seed coat (Bot.), the covering of a seed. -- Seed corn, or Seed grain (Bot.), corn or grain for seed. -- Seed down (Bot.), the soft hairs on certain seeds, as cotton seed…

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.

That part of a plant which bears leaves, or rudiments of leaves, whether rising above ground or wholly subterranean.

genus Stenoderma, native of the West Indies and South America. These bats have a short or rudimentary tail and a peculiarly shaped nose membrane.

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.

by a fold of the mantle. When there is a shell, it is usually thin and delicate and often rudimentary. The aplysias and the bubble shells are examples.

A division of Coleoptera having, apparently, only four tarsal joints, one joint being rudimentary.