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A division of the Articulata, including the annelids and allied groups; sometimes made to include also the helminths and echinoderms. [Written also Annuloidea.]

One of a group of perching birds, having the middle toe more or less united to the outer and inner ones.

A group of decapod Crustacea, of which the hermit crab in an example.

A group of insects which includes the lice.

One of a group of ruminant quadrupeds, intermediate between the deer and the goat. The horns are usually annulated, or ringed. There are many species in Africa and Asia. The antelope and wolf both fierce and fell. Spenser.

A mineral of the hornblende group, of a yellowish gray or clove brown color. -- An`tho*phyl*lit"ic, a.

class of the Coelenterata which includes the corals and sea anemones. The three principal groups or orders are Acyonaria, Actinaria, and Madreporaria.

The group that includes man only.

A group of nomadic North American Indians including several tribes native of Arizona, New Mexico, etc.

A group of wingless insects, of which the flea in the type. See Flea.

A group of cirripeds, destitute of footlike organs.

A group of holothurians destitute of suckers. See Apneumona.

A group of corals in which the coral is not porous; -- opposed to Perforata.

A group of Turbellaria in which there is no anal aperture.

Insects without wings, constituting the seventh Linnæn order of insects, an artificial group, which included Crustacea, spiders, centipeds, and even worms. These animals are now placed in several distinct classes and orders.

tate of being arborescent; the resemblance to a tree in minerals, or crystallizations, or groups of crystals in that form; as, the arborescence produced by precipitating silver.

The plan or fundamental structure on which a natural group of animals or plants or their systems of organs are assumed to have been constructed; as, the vertebrate archetype.

A group of Annelida remarkable for having no external segments or distinct ventral nerve ganglions.

Hence: Any sea or broad sheet of water interspersed with many islands or with a group of islands.

The group of moldings, or other architectural member, above and on both sides of a door or other opening, especially if square in form.