Oligochaeta \Ol`i*go*ch[ae]"ta\, n. pl. [NL., fr. Gr. ? little,
pl., few + ? hair.]
(Zo["o]l.)
An order of Annelida which includes the earthworms and
related species.
Source: Webster's Revised Unabridged Dictionary (1913)
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Annelida \An*nel"i*da\, n. pl. [NL. See Annelid.]
(Zo["o]l.)
A division of the Articulata, having the body formed of
numerous rings or annular segments, and without jointed legs.
The principal subdivisions are the Ch[ae]topoda, including
the Oligoch[ae]ta or earthworms and Polych[ae]ta or
marine worms; and the Hirudinea or leeches. See
Ch[ae]topoda.
Source: Webster's Revised Unabridged Dictionary (1913)
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