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An arachnidan. Huxley.

One of the classes of Arthropoda. See Illustration in Appendix.

One of the Arachnida.

Of or pertaining to the Arachnida.

The glandular organ in which the material for the web of spiders is secreted.

One of a group of arachnids, including the mites and ticks.

The group of Arachnida which includes the mites and ticks. Many species are parasitic, and cause diseases like the itch and mange.

Same as Arachnida.

The department of zoölogy which treats of spiders and other Arachnida.

The order of Arachnida that includes the spiders.

A group of Arachnida. See Illust. in Appendix.

A division of the Arachnida, having the abdomen annulated, including the scorpions, harvestmen, etc.; pedipalpi.

division of Articulata, embracing all those that have jointed legs. It includes Insects, Arachnida, Pychnogonida, and Crustacea. -- Ar*throp"o*dal, a.

The anterior portion of any one of the Arachnida and higher Crustacea, consisting of the united head and thorax.

The pincherlike claw of Crustacea and Arachnida.

anterior pair of mouth organs, terminated by a pincherlike claw, in scorpions and allied Arachnida. They are homologous with the falcers of spiders, and probably with the mandibles of insects.

An arachnidan of the genus Phalangium, and allied genera, having a small body and four pairs of long legs; -- called also harvestman, carter, and grandfather longlegs.

false mark or other symbol, used for fraudulent purposes. -- False scorpion (Zoöl.), any arachnid of the genus Chelifer. See Book scorpion. -- False tack (Naut.), a coming up into the wind and filling away again on the same tack. -- False vampire (Zoöl.), the Vampyrus spectrum of South America, formerly erroneously…

The true, or six-legged, insects; insects other than myriapods and arachnids.

An order of wormlike, degraded, parasitic arachnids. They have two pairs of retractile hooks, near the mouth. Called also Pentastomida.