Hirudinea
蛭綱
Hir·u·din·ea /ˌhɪr(j)əˈdɪnɪə/ 名詞 複數
蛭綱
An·nel·i·da n. pl. Zool. A division of the Articulata, having the body formed of numerous rings or annular segments, and without jointed legs. The principal subdivisions are the Chætopoda, including the Oligochæta or earthworms and Polychæta or marine worms; and the Hirudinea or leeches. See Chætopoda.
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Hir·u·din·e·a n. pl. Zool. An order of Annelida, including the leeches; -- called also Hirudinei.
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Hirudinea
n : hermaphroditic aquatic or terrestrial or parasitic annelids
[syn: class Hirudinea]