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The Collaborative International Dictionary
Hirudo

Hirudo \Hi*ru"do\, n. [L., a leech.] (Zo["o]l.) A genus of leeches, including the common medicinal leech. See Leech.

Wikipedia
Hirudo

Hirudo is a genus of leeches of the family Hirudinidae. It was described by Linnaeus in 1758.

There are two well-accepted species within the genus:

  • Hirudo medicinalis Linnaeus, 1758
  • Hirudo nipponia Whitman, 1886

Three other species, previously synonymized with Hirudo medicinalis, were described in 2005 and are gaining acceptance:

  • Hirudo verbana
  • Hirudo orientalis
  • Hirudo troctina