Hypertext Webster Gateway: "Arthrogastra"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Arthrogastra \Ar`thro*gas"tra\, n. pl. [NL., fr. Gr. 'a`rqron
joint + ? stomach.] (Zo["o]l.)
A division of the Arachnida, having the abdomen annulated,
including the scorpions, harvestmen, etc.; pedipalpi.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Arachnida \A*rach"ni*da\, n. pl. [NL., fr. Gr. ? spider.]
(Zo["o]l.)
One of the classes of Arthropoda. See Illustration in
Appendix.
Note: They have four pairs of legs, no antenn[ae] nor wings,
a pair of mandibles, and one pair of maxill[ae] or
palpi. The head is usually consolidated with the
thorax. The respiration is either by tranche[ae] or by
pulmonary sacs, or by both. The class includes three
principal orders: {Araneina}, or spiders;
{Arthrogastra}, including scorpions, etc.; and
{Acarina}, or mites and ticks.
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